https://robojax.com/tutorial_view.php?lang=en&id=1 2026-08-26 https://robojax.com/images/video_thumbs/1_qzSgZV_fbxI.jpg E1 Using Arduino APDS-9960 RGB Gesture Sensor detect movement of your hand Detect hand gestures with the APDS-9960 sensor and Arduino. Wire via I2C, read swipes and proximity, and display results on the serial monitor. https://www.youtube.com/embed/qzSgZV_fbxI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=2 2026-08-26 https://robojax.com/images/video_thumbs/2_rCXYP6H3gSE.jpg E2 Extract GPS location in Arduino with NEO-6m or NEO-7M module RJT02 Extract latitude and longitude from a Ublox NEO-6M GPS module using Arduino. Read GPS data, parse coordinates, and print them to the serial monitor. https://www.youtube.com/embed/rCXYP6H3gSE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=3 2026-08-26 https://robojax.com/images/video_thumbs/3_AAiDwBKs9uE.jpg E3 Display text on 8x8 LED matrix with MAX7219 Arduino module RJT03 Display text on an 8x8 LED matrix using a MAX7219 module with Arduino. Wire it, code it with LedControl library, and show 'ROBOJAX'. https://www.youtube.com/embed/AAiDwBKs9uE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=4 2026-08-26 https://robojax.com/images/video_thumbs/653_Sl2mzXfTwCs.jpg Control Stepper motor 28BYJ-48 with ULN2003 for Arduino - RJT4 Control a 28BYJ-48 stepper motor with a ULN2003 driver and Arduino. Learn wiring, code, and how to rotate the motor in both directions for precise position and speed control. https://www.youtube.com/embed/Sl2mzXfTwCs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=5 2026-08-26 https://robojax.com/images/video_thumbs/5_7tUGUXyloXQ.jpg E5 Using 5V 1 channel relay module for Arduino RJT05 Control high-voltage devices with a 5V low-trigger relay module and Arduino. Wire it, program it, and toggle loads up to 10A safely. https://www.youtube.com/embed/7tUGUXyloXQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=6 2026-08-26 https://robojax.com/images/video_thumbs/6_sxR5crA0mDU.jpg How to use TTP223 Capacitive touch Arduino module RTJ06 Use the TTP223 capacitive touch module with Arduino to create a touch-sensitive switch. Wire it, read touch inputs, and control a relay or light with simple code. https://www.youtube.com/embed/sxR5crA0mDU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=7 2026-08-26 https://robojax.com/images/video_thumbs/7_TbLdAQpE4jE.jpg How to read DC voltage from potentiometer with Arduino RJT07 Read voltage from a potentiometer with Arduino, convert analog readings to voltage, and calculate resistance. Wiring and code examples for the serial monitor. https://www.youtube.com/embed/TbLdAQpE4jE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=8 2026-08-26 https://robojax.com/images/video_thumbs/8_kZ9b31gVemc.jpg How to control Servo motor with Arduino with and without potentiometer RJT08 Control a servo motor with a potentiometer using Arduino. Map analog input to 0-180 degrees and adjust servo position smoothly with SG90. https://www.youtube.com/embed/kZ9b31gVemc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=9 2026-08-26 https://robojax.com/images/video_thumbs/9_1Xf34Vw_kZo.jpg How to control servo with hand gesture in Arduino RJT09 Control a servo motor with hand gestures using Arduino and APDS-9960 sensor. Detect left/right movements to rotate servo to 180 or 0 degrees. Wiring and code included. https://www.youtube.com/embed/1Xf34Vw_kZo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=11 2026-08-26 https://robojax.com/images/video_thumbs/10_iNea_HM967A.jpg Using LDR wth Arduino, photoresistor with arduino RJT11 Control a light with an LDR and Arduino. Read ambient light levels via analog voltage, set a threshold, and switch an output pin to turn an LED on or off. https://www.youtube.com/embed/iNea_HM967A?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=12 2026-08-26 https://robojax.com/images/video_thumbs/11_0GxFoq_zPt4.jpg Lesson 80: How to measure distance with VL53L0X GY-530 laser distance meter for Arduino RJT12 Measure distances up to 2 meters with the VL53L0X laser distance meter and Arduino. Use the Adafruit library to read and display distance in the serial monitor. https://www.youtube.com/embed/0GxFoq_zPt4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=14 2026-08-26 https://robojax.com/images/video_thumbs/13_naSSiS_9rEw.jpg Using 1602 LCD kaypad shield for Arduino RJT014 Display messages and detect key presses on a 1602 LCD Keypad Shield with Arduino. Program the analog keypad and LCD using basic code. https://www.youtube.com/embed/naSSiS_9rEw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=15 2026-08-26 https://robojax.com/images/video_thumbs/14_3_6g-FWzC0k.jpg E15 Arduino code for 4 channel TTP224 Capacitive Touch Sensor RJT015 Use TTP224 4-channel capacitive touch sensor with Arduino to light LEDs and print serial messages when buttons are touched. Simple wiring and code for beginners. https://www.youtube.com/embed/3_6g-FWzC0k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=16 2026-08-26 https://robojax.com/images/video_thumbs/15_4kVhG0OpCf8.jpg E16 TTP224 Turn AC load ON with touch and relay with and without Arduino RJT16 Control AC/DC loads with the TTP224 4-channel touch sensor and Arduino. Wire the module to a relay and use touch inputs to switch lights, fans, or motors on and off. https://www.youtube.com/embed/4kVhG0OpCf8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=17 2026-08-26 https://robojax.com/images/video_thumbs/16_g_kqd64dXzA.jpg E17 Using TTP223B touch module and relay to control AC/DC load with Arduino RJT17 Control AC/DC loads with a TTP223B touch module and relay using an Arduino. Wire the components, write code, and adjust load activation timing. https://www.youtube.com/embed/g_kqd64dXzA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=18 2026-08-26 https://robojax.com/images/video_thumbs/17_2RBFKqoauaI.jpg E18 Using Reed magnetic switch with Arduino and Relay RJT18 Control AC/DC loads with an Arduino using a reed switch and relay. Wire the magnetic sensor to trigger the relay and manage high-voltage devices safely. https://www.youtube.com/embed/2RBFKqoauaI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=19 2026-08-26 https://robojax.com/images/video_thumbs/18_DuamjlstOKM.jpg E19 How to use TM1637 4 digits seven segment display with Arduino RJT19 Display numbers and counters on a TM1637 4-digit 7-segment display with Arduino. Wire DIO to pin 3, CLK to pin 2, and adjust brightness via code. https://www.youtube.com/embed/DuamjlstOKM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=20 2026-08-26 https://robojax.com/images/video_thumbs/19_cD5oOu4N_AE.jpg E20 MAX6675 K-Thermocouple 3 Example with relay and display with code RJT20 Measure temperature with a MAX6675 K-type thermocouple on Arduino, control a relay at 80°C, and display readings on a TM1637 LED module. https://www.youtube.com/embed/cD5oOu4N_AE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=21 2026-08-26 https://robojax.com/images/video_thumbs/20_F4ipGinnhC4.jpg How to use TM1638 4 digit display (QYF) with code RJT21 Use a TM1638 4-digit display with buttons on Arduino. Wire VCC, GND, STB, CLK, DIO pins and program to show numbers and respond to button presses. https://www.youtube.com/embed/F4ipGinnhC4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=24 2026-08-26 https://robojax.com/images/video_thumbs/23_2WwedCRwmgA.jpg Arduino for Beginners: Using Push button to turn ON LED light RJT24 Control an LED with a push button using Arduino. See wiring for pin 2 and 10, code with INPUT_PULLUP, and how pressing the button turns the LED on and off. https://www.youtube.com/embed/2WwedCRwmgA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=25 2026-08-26 https://robojax.com/images/video_thumbs/24_7CCSRs5bvH0.jpg Using Arduino Turn AC bulb with push button On and OFF toggle with relay RJT25 Toggle an AC bulb on and off with an Arduino push button and SRD-05VDC-SL-C relay module. Wiring, code, and demo for controlling AC loads safely. https://www.youtube.com/embed/7CCSRs5bvH0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=27 2026-08-26 https://robojax.com/images/video_thumbs/25_y8X9X10Tn1k.jpg Complete guide to PCA9685 16 channel Servo controller for Arduino V1 RJT27 Control up to 16 servos with the PCA9685 16-channel 12-bit servo controller and Arduino. Wiring, code examples, and PWM frequency settings for precise servo positioning. https://www.youtube.com/embed/y8X9X10Tn1k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=28 2026-08-26 https://robojax.com/images/video_thumbs/26_UmYiHTOz-5k.jpg How to use SSD1306 128x64 OLED Display I2C with Arduino code RJT28 Display text and graphics on SSD1306 OLED 128x64 with Arduino. Wire I2C, use Adafruit_SSD1306 library, and run code examples for clear output. https://www.youtube.com/embed/UmYiHTOz-5k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=29 2026-08-26 https://robojax.com/images/video_thumbs/27_qIDzzG2LUtg.jpg E029 How to use Arduino 4x4 keypad download the code RJT29 Read a 4x4 soft keypad with Arduino using the Keypad library. Wire rows to pins 2-5 and columns to 6-9, then display pressed keys on the serial monitor. https://www.youtube.com/embed/qIDzzG2LUtg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=30 2026-08-26 https://robojax.com/images/video_thumbs/28_QI9541YQq7M.jpg HC-SR04 Ultrasonic obstacle avoidance range finder with Arduino RJT30 Measure distance with the HC-SR04 ultrasonic sensor and Arduino. Wiring, NewPing library code, and serial monitor output for accurate readings. https://www.youtube.com/embed/QI9541YQq7M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=31 2026-08-26 https://robojax.com/images/video_thumbs/29_SlgLj_T5GaY.jpg How to use HC-SR04 Ultrasonic range finder with TM1637 display RJT31 Measure distance with HC-SR04 ultrasonic sensor and display readings on a TM1637 7-segment display using Arduino. Wiring and code included. https://www.youtube.com/embed/SlgLj_T5GaY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=32 2026-08-26 https://robojax.com/images/video_thumbs/30_Pgx5fNF4Q6M.jpg How to use HC-SR04 Ultrasonic Distance sensor with SSD1306 OLED display RJT32 Display HC-SR04 ultrasonic distance sensor readings on an SSD1306 OLED with Arduino. Wiring, code, and demo for measuring distance without a computer. https://www.youtube.com/embed/Pgx5fNF4Q6M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=33 2026-08-26 https://robojax.com/images/video_thumbs/31_58XWVDnB7Ss.jpg How to use 5V Relay with Arduino to turn ON and OFF AC bulb or DC load RJT33 Control a 5V high-trigger relay module with Arduino to switch AC or DC loads like bulbs and motors. See wiring, code, and demo for home automation. https://www.youtube.com/embed/58XWVDnB7Ss?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=34 2026-08-26 https://robojax.com/images/video_thumbs/32_EclIomn_3dI.jpg How to use 2 channel relay to control AC and DC loads in Arduino RJT34 Control AC and DC loads with a dual-channel 5V relay and Arduino. Wire the relay, program it with simple code, and switch loads every 3 seconds. Perfect for beginners. https://www.youtube.com/embed/EclIomn_3dI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=35 2026-08-26 https://robojax.com/images/video_thumbs/33_mZCJNOf69JI.jpg How to use HC-SR501 Motion sensor for Arduino with code RJT35 Detect motion with the HC-SR501 sensor and Arduino. Wire VCC, GND, OUT to pins, adjust sensitivity and delay, and control an LED with code. https://www.youtube.com/embed/mZCJNOf69JI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=36 2026-08-26 https://robojax.com/images/video_thumbs/34_u9q6cHj89b4.jpg How to use 4 channel Arduino Relay Shield RJT36 Control a 4-channel relay shield with Arduino. Wire pins 4-7, write code to switch AC/DC loads like lights and motors, and monitor via LEDs. https://www.youtube.com/embed/u9q6cHj89b4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=37 2026-08-26 https://robojax.com/images/video_thumbs/35_BiOh_Z2N7kk.jpg How to use 4x1 push button keypad in Arduino RJT37 Use a four-key keypad with Arduino to read button presses using just five wires. Includes wiring, code, and serial monitor output for each key. https://www.youtube.com/embed/BiOh_Z2N7kk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=38 2026-08-26 https://robojax.com/images/video_thumbs/36_T3Li128GBlM.jpg Infrared Obstacle Avoidance module for Arduino with code RJT38 Build an obstacle avoidance system with an infrared sensor module and Arduino. See wiring, code, and how to adjust detection distance up to 10 cm. https://www.youtube.com/embed/T3Li128GBlM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=39 2026-08-26 https://robojax.com/images/video_thumbs/37_-E9J9ExdZ20.jpg Turn AC Bulb ON/OFF using Bluetooth HC-06 and cellphone with Arduino RJT39 Control an AC bulb with HC-06 Bluetooth module and Arduino. Wire relay, send '1' to turn on, '2' to turn off. Includes code and wiring guide. https://www.youtube.com/embed/-E9J9ExdZ20?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=40 2026-08-26 https://robojax.com/images/video_thumbs/38_FjZBt6eU9b4.jpg How to use DHT11 Temperature and Humidity Sensor RJT40 Measure temperature and humidity with the DHT11 sensor and Arduino. Get wiring, code, and readings in Celsius, Fahrenheit, and Kelvin. https://www.youtube.com/embed/FjZBt6eU9b4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=41 2026-08-26 https://robojax.com/images/video_thumbs/39_oi_GPSLjgBY.jpg How to use DHT22 AM3302 Temperature and Humidity sensor with Arduino RJT41 Measure temperature and humidity with the DHT22 (AM2302) sensor and Arduino. Display Celsius, Fahrenheit, or Kelvin using the DHT library. Includes wiring and code. https://www.youtube.com/embed/oi_GPSLjgBY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=43 2026-08-26 https://robojax.com/images/video_thumbs/897_z_FvRm6Te78.jpg Using DHT22 Temperature and humidity sensor with TM1637 seven segment display RJT43 Display DHT22 temperature and humidity on a TM1637 7-segment display with Arduino Uno. Includes wiring, code, and options for Celsius, Fahrenheit, Kelvin, and heat index. https://www.youtube.com/embed/z_FvRm6Te78?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=44 2026-08-26 https://robojax.com/images/video_thumbs/896_xD8wHXDzLkQ.jpg Using DHT11, DHT22 with TM1637 display and Relay to control AC load Control an AC load with Arduino using DHT22 temperature sensor, TM1637 display, and relay. Turn load on at 50°C and off below threshold with code and wiring. https://www.youtube.com/embed/xD8wHXDzLkQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=45 2026-08-26 https://robojax.com/images/video_thumbs/42_6N8Iq353GM8.jpg Introduction to Dual Axis XY Joystick for Arduino RJT45 Read a dual-axis XY joystick with Arduino: display X/Y positions and switch state on the Serial Monitor, with wiring and code examples. https://www.youtube.com/embed/6N8Iq353GM8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=46 2026-08-26 https://robojax.com/images/video_thumbs/43_64NatLeGsaE.jpg How to use Solid State Relay with Arduino to Control AC load RTJ46 Control an AC bulb with an Arduino and G3MB-202P solid-state relay. See wiring, code, and demo to switch loads safely using a low-voltage signal. https://www.youtube.com/embed/64NatLeGsaE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=47 2026-08-26 https://robojax.com/images/video_thumbs/44_6Qs4iFYm_lg.jpg 4 Channel Infrared Obstacle Sensor for Arduino smart car RTJ47 Measure obstacles with a 4-channel infrared sensor module on Arduino. Wire LM339-based sensors, read digital outputs, and code a smart car to react. https://www.youtube.com/embed/6Qs4iFYm_lg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=48 2026-08-26 https://robojax.com/images/video_thumbs/45_46Z-6MVxKnc.jpg How to use Tilt Sensor for Arduino with code RJT48 Build a tilt sensor with Arduino Uno: wire the tilt sensor module, read its digital output, and trigger an LED and buzzer when tilt is detected. Includes code and wiring guide. https://www.youtube.com/embed/46Z-6MVxKnc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=49 2026-08-26 https://robojax.com/images/video_thumbs/46_OZkZIP3KlHQ.jpg How to detectg flame with Arduino RJT49 Detect flames with the LM393 flame sensor module and Arduino. Wire the sensor, read digital output, and trigger a buzzer alarm with this code example. https://www.youtube.com/embed/OZkZIP3KlHQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=50 2026-08-26 https://robojax.com/images/video_thumbs/47_q9YC_GVHy5A.jpg How to use LCD LCD1602 with I2C module for Arduino - RJT50 Display text on LCD1602 with I2C interface using Arduino. Wire VCC, GND, SDA, SCL to control 16x2 LCD with only 4 pins. Code and library included. https://www.youtube.com/embed/q9YC_GVHy5A?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=51 2026-08-26 https://robojax.com/images/video_thumbs/48_S4ya3Q7uhJs.jpg Using LCD1602 LCD display for Arduino RJT51 Display text on a 16x2 LCD1602 with Arduino without I2C. Wire 12 pins, use LiquidCrystal library, and control backlight with a potentiometer. https://www.youtube.com/embed/S4ya3Q7uhJs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=52 2026-08-26 https://robojax.com/images/video_thumbs/49_QH1Lw9BwTJI.jpg Hall Sensor Switch Demo and Code for Arduino RJT52 Detect magnetic fields with KY-024 Hall Sensor module and Arduino. Wire sensor to pin 2, buzzer to pin 8, and monitor output on Serial Monitor. https://www.youtube.com/embed/QH1Lw9BwTJI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=53 2026-08-26 https://robojax.com/images/video_thumbs/50_h_y1y6eUvIY.jpg How to use Laser Transmitter and Laser sensor for Arduino RJT53 Detect a laser beam with an Arduino, laser transmitter and receiver, and trigger a buzzer. Wiring and code for laser sensor module. https://www.youtube.com/embed/h_y1y6eUvIY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=54 2026-08-26 https://robojax.com/images/video_thumbs/51_dnjY9n927HI.jpg How to use Sharp IR Distance Sensor with TM1637 Display with Arduino RJT54 Measure distance with the Sharp GP2Y0A41SK0F IR sensor and display readings on a TM1637 module using Arduino. Wiring and code walkthrough included. https://www.youtube.com/embed/dnjY9n927HI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=55 2026-08-26 https://robojax.com/images/video_thumbs/52_GL8dkw1NbMc.jpg How to use Sharp IR Distance Sensor with Arduino RTJ55 Measure distance with Sharp GP2Y0A21YK0F IR sensor and Arduino. Wire the module, read distance, and trigger a buzzer when objects are within range. https://www.youtube.com/embed/GL8dkw1NbMc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=56 2026-08-26 https://robojax.com/images/video_thumbs/53_RHgMwtKLEnE.jpg Measure distance with Sharp IR sensor and LCD1602 display with I2C in Arduino RJT56 Measure distance with Sharp GP2Y0A41SK0F IR sensor and display on LCD1602 via I2C. Arduino code and wiring guide for accurate readings. https://www.youtube.com/embed/RHgMwtKLEnE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=57 2026-08-26 https://robojax.com/images/video_thumbs/54_NjUOEAoKY7A.jpg Measure distance with Sharp IR sensor and LCD1602 I2C display in Arduino RJT57 Measure distances from 4 to 30 cm using a Sharp GP2Y0A41SK0F IR sensor and display readings on an LCD1602 with Arduino. Includes wiring and code. https://www.youtube.com/embed/NjUOEAoKY7A?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=58 2026-08-26 https://robojax.com/images/video_thumbs/55_IfK8z_o5vbk.jpg Arduino Talks with ISD1820 Voice, Audio Sound recorder player module with Arduino code RJT58 Record and play back up to 20 seconds of audio with the ISD1820 voice recorder module and Arduino. Wire it, code it, and control it via serial commands. https://www.youtube.com/embed/IfK8z_o5vbk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=59 2026-08-26 https://robojax.com/images/video_thumbs/56_FaoKzi7tgME.jpg Voltage Sensor for Arduino with code and formula to measure any DC voltage RJT58 Measure input voltage with a voltage sensor module and Arduino. Wire the module to analog pin A0, upload code, and view readings on the serial monitor. Supports 0-25V. https://www.youtube.com/embed/FaoKzi7tgME?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=60 2026-08-26 https://robojax.com/images/video_thumbs/57_qhThpxiXubI.jpg How to Turn an AC light ON with HC-SR505 motion sensor and relay RJT60 Detect motion with the HC-SR505 PIR sensor and control a relay to switch high-voltage devices. Arduino wiring and code for a motion-activated light or buzzer. https://www.youtube.com/embed/qhThpxiXubI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=61 2026-08-26 https://robojax.com/images/video_thumbs/58_CyDAWcY8_5w.jpg How to use LDR Light Sensor module to Turn ON and OFF AC bulb automatically withe Arduino RJT61 Control an AC light with an Arduino light sensor module and relay. Automatically turn lights on when dark and off when bright. Includes wiring and code examples. https://www.youtube.com/embed/CyDAWcY8_5w?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=62 2026-08-26 https://robojax.com/images/video_thumbs/59_1szA8CKWuZY.jpg Turn AC bulb ON and OFF using hand clap, audio or sound Arduino RJT62 Control an AC bulb with claps or voice using the KY-037 sound detection module and Arduino. Wire the module, relay, and bulb, then upload the toggle code. https://www.youtube.com/embed/1szA8CKWuZY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=63 2026-08-26 https://robojax.com/images/video_thumbs/60_MrYsmAwzfrM.jpg E18-D80NK IR Obstacle Avoidance Proximity Sensor Switch with Arduino RJT063 Detect obstacles with the E18-D80NK infrared sensor and Arduino. Wire it to digital pin 2, read the output, and trigger an LED or relay. Includes code and demo. https://www.youtube.com/embed/MrYsmAwzfrM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=64 2026-08-26 https://robojax.com/images/video_thumbs/61_jAmDliHcTJ0.jpg Introduction to L293D and Controlling DC Motor RJT64 Control a DC motor's direction with the L293D driver and Arduino. See wiring, code, and demonstration for clockwise and counter-clockwise rotation. https://www.youtube.com/embed/jAmDliHcTJ0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=65 2026-08-26 https://robojax.com/images/video_thumbs/62_zqDZybR5JSE.jpg Using Nokia 5110 LCD screen with XY Joystick with Arduino RJT65 Control a dot on a Nokia 5110 LCD using a dual-axis XY joystick with Arduino. Read analog X/Y, map to screen, and display in real-time. https://www.youtube.com/embed/zqDZybR5JSE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=66 2026-08-26 https://robojax.com/images/video_thumbs/63_Pk5Wig5EO0s.jpg How to use Nokia 5110 LCD Screen with Arduino RJT66 Display graphics and text on a Nokia 5110 LCD with Arduino. Code for drawing lines, circles, rectangles, and text using SPI. Wiring and examples included. https://www.youtube.com/embed/Pk5Wig5EO0s?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=67 2026-08-26 https://robojax.com/images/video_thumbs/64_RjyulqVsz2o.jpg How to use SSD1306 128x32 OLED Display I2C with Arduino code Display text, rectangles, and dynamic voltage on an SSD1306 OLED 128x32 with Arduino using I2C. Includes wiring and code examples. https://www.youtube.com/embed/RjyulqVsz2o?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=68 2026-08-26 https://robojax.com/images/video_thumbs/65_3ifN0FhLB5E.jpg Introduction to AM2320 Digital Temperature and Humidity Sensor RJT68 Read temperature and humidity with the Aosong AM2320 sensor and Arduino. I2C wiring, code, and serial monitor output for Celsius or Fahrenheit. https://www.youtube.com/embed/3ifN0FhLB5E?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=69 2026-08-26 https://robojax.com/images/video_thumbs/66_ym567hneDpE.jpg AM2320 Digital Temperature and Humidity Sensor with LCD1602 and I2C RJT69 Display AM2320 temperature and humidity on LCD1602 with I2C module. Arduino code shows °F, °C, and RH% with error handling. https://www.youtube.com/embed/ym567hneDpE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=70 2026-08-26 https://robojax.com/images/video_thumbs/67_wH9HpP9bKwE.jpg How to detect hand gesture APDS9960 Gesture, RGB and Proximity sensor for Arduino RJT70 Measure gestures, RGB color, and proximity with the APDS9960 sensor on Arduino. Wire it via I2C and display detected gestures on the serial monitor. https://www.youtube.com/embed/wH9HpP9bKwE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=71 2026-08-26 https://robojax.com/images/video_thumbs/68_Wbm3MCMgM_s.jpg How to use 4 channel Relay to control AC load with Arduino code RJT71 Control a 4-channel 5V relay module with Arduino to switch AC loads. Code, wiring, and demo for low-trigger relays, adaptable to 2, 8, or 16 channels. https://www.youtube.com/embed/Wbm3MCMgM_s?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=72 2026-08-26 https://robojax.com/images/video_thumbs/69_2y6t0GoeCZA.jpg Using Omron G3MB Solid State Relay Control AC Load with and without Arduino RJT72 Control an AC light bulb with the Omron G3MB solid-state relay and Arduino. See wiring, code, and safety tips for switching 240V loads with 5V signals. https://www.youtube.com/embed/2y6t0GoeCZA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=73 2026-08-26 https://robojax.com/images/video_thumbs/70_HzLCkzX5q3w.jpg Control relay and AC bulb from Windows Shell Command line via USB and Arduino Control a relay via Arduino and USB to UART module using Windows PowerShell commands. Turn AC devices on/off with serial commands. Includes wiring and code. https://www.youtube.com/embed/HzLCkzX5q3w?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=74 2026-08-26 https://robojax.com/images/video_thumbs/71_RWeqqOCsc84.jpg Tesla Coil Kit - Build step by step and test with music RJT74 Build a Tesla coil kit that lights LEDs and sparks to audio. Solder MOSFET, capacitor, and audio jack, then test the high-voltage oscillator. https://www.youtube.com/embed/RWeqqOCsc84?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=75 2026-08-26 https://robojax.com/images/video_thumbs/72_1rfrvOTxtrg.jpg How to use 4x4 matrix hard keys keypad with Arduino RJT75 Read a 4x4 matrix keypad with Arduino using the Keypad library. Wire rows to pins 2-5, columns to 6-9, and display key presses in the serial monitor. https://www.youtube.com/embed/1rfrvOTxtrg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=76 2026-08-26 https://robojax.com/images/video_thumbs/73_81XzLwt3dqo.jpg Home Automation: 12V Relay with LED Display Delay 0.1 seconds to 999 seconds Timer module P1 to P4 Use a 12V relay with an LED display delay timer module in four modes (P1-P4) for timed control of lights, pumps, alarms, and industrial loads up to 2500W. https://www.youtube.com/embed/81XzLwt3dqo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=77 2026-08-26 https://robojax.com/images/video_thumbs/74_DZrOOhRCtZM.jpg How to use Fotek SSR-40 Solid State Relay with Arduino and without Arduino RJT77 Control AC loads with the Fotek SSR-40 solid-state relay and Arduino. Wiring, code, and demonstration for switching high-power devices safely. https://www.youtube.com/embed/DZrOOhRCtZM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=78 2026-08-26 https://robojax.com/images/video_thumbs/75_ZdVkMaZqKXs.jpg Using L298N Stepper Motor Driver To control 4 wires stepper motor RJT78 Control a 4-wire stepper motor with an L298N driver and Arduino. Wire the driver, enable ENA/ENB, and use the Stepper library to rotate the motor in both directions. https://www.youtube.com/embed/ZdVkMaZqKXs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=79 2026-08-26 https://robojax.com/images/video_thumbs/76_3_C7gJeX9hc.jpg Lesson 85: Control Servo Motor with Potentiometer using Arduino RJT79 Control a servo motor with a potentiometer using Arduino. Read analog input, map to 0-180 degrees, and adjust servo angle smoothly. Wiring and code included. https://www.youtube.com/embed/3_C7gJeX9hc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=80 2026-08-26 https://robojax.com/images/video_thumbs/77_DN1LPMSZtNA.jpg Control Servo with potentiometer and LCD1602 LCD display RJT80 Control a servo motor with a potentiometer and display the value and angle on an LCD1602 using Arduino. Includes wiring, code, and demo. https://www.youtube.com/embed/DN1LPMSZtNA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=81 2026-08-26 https://robojax.com/images/video_thumbs/78_7woqNH_qby4.jpg Control Servo motor with push 2 buttons with Arduino SPB-4 RJT81 Control a servo motor with two push buttons using Arduino. Press to move 10 degrees left or right, hold to keep moving. Wiring and code included. https://www.youtube.com/embed/7woqNH_qby4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=82 2026-08-26 https://robojax.com/images/video_thumbs/79_SiHfjzcqnU4.jpg Using Allegro ACS758 Current Sensor with Arduino for 50A to 200A RJT82 Measure 50A to 200A current with the Allegro ACS758 sensor and Arduino. Wire the sensor, read voltage on A0, and display current on the serial monitor. https://www.youtube.com/embed/SiHfjzcqnU4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=83 2026-08-26 https://robojax.com/images/video_thumbs/80_S2jaAQEv3Yo.jpg Lesson 77: Measure Distance with VL53L0X 6 pin Laser module with Arduino RJT83 Measure distance up to 200 cm with the VL53L0X laser sensor and Arduino. Wire the 6-pin module via I2C, read values on serial monitor, and use the code provided. https://www.youtube.com/embed/S2jaAQEv3Yo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=84 2026-08-26 https://robojax.com/images/video_thumbs/81_oGWpb9C9XXA.jpg Using VL53L0X 6 pin Laser module with TM1637 LED Display to measure distance RJT84 Measure distance with the VL53L0X laser sensor and display readings on a TM1637 7-segment display using Arduino. Includes wiring and code examples. https://www.youtube.com/embed/oGWpb9C9XXA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=85 2026-08-26 https://robojax.com/images/video_thumbs/82_17vqLv508Uw.jpg Using IRF520 MOSFET Switch Button to Turn ON or OFF DC load RJT85 Control larger loads with an Arduino using the IRF520 MOSFET module. Wire it, program it, and switch devices on/off with simple code commands. https://www.youtube.com/embed/17vqLv508Uw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=86 2026-08-26 https://robojax.com/images/video_thumbs/83_26XHb_cpiAA.jpg Control AC bulb with USB Relay module using windows PowerShell Command line RJT86 Control an AC bulb from Windows Command Line using a USB relay module. Send commands via PowerShell to turn the light on and off with the SRD-05VDC-SL-C relay. https://www.youtube.com/embed/26XHb_cpiAA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=87 2026-08-26 https://robojax.com/images/video_thumbs/84_pxR6e-3XkIk.jpg How to use TEMT6000 Ambient Light Sensor with Arduino RJT87 Measure ambient light intensity with the TEMT6000 phototransistor and Arduino. Wire the sensor, read analog voltage, and display millivolt and volt readings on the serial monitor. https://www.youtube.com/embed/pxR6e-3XkIk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=88 2026-08-26 https://robojax.com/images/video_thumbs/85_-g6Q9lSHDzg.jpg How to control 2 DC motors using L9110s motor driver module with Arduino code RJT88 Control two DC motors with the L9110 dual motor controller module and Arduino. Learn wiring, code, and direction control for robotics projects. https://www.youtube.com/embed/-g6Q9lSHDzg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=89 2026-08-26 https://robojax.com/images/video_thumbs/86_tug9wjCwDQA.jpg Measure current with ACS758 Current Sensor and LCD1602-I2C with Arduino RJT89 Measure current up to 200A with the Allegro ACS758 sensor and display readings on an LCD1602 I2C for Arduino. Wiring and code included. https://www.youtube.com/embed/tug9wjCwDQA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=90 2026-08-26 https://robojax.com/images/video_thumbs/87_Co-DrCa2slk.jpg Measure current with ACS758 Current sensor and LCD1602 with Arduino RJT90 Measure current up to 200A with the Allegro ACS758 sensor and display readings on an LCD1602 with Arduino. Wiring, code, and live demo included. https://www.youtube.com/embed/Co-DrCa2slk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=91 2026-08-26 https://robojax.com/images/video_thumbs/88_aHg9UrK9s9c.jpg Measuring current usign Allegro ACS758 200A Current Sensor with SSD1306 OLED display RJT91 Measure current with the Allegro ACS758 Hall-effect sensor and display readings on an SSD1306 OLED with Arduino. Wiring, code, and calibration included. https://www.youtube.com/embed/aHg9UrK9s9c?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=92 2026-08-26 https://robojax.com/images/video_thumbs/89_GE4I10IZ1jY.jpg OverCurrent Protection with Allegro ACS758 Current sensor with LCD1602-I2C RJT92 Measure current with the Allegro ACS758 sensor on Arduino, display readings on an LCD1602, and add overcurrent protection with a relay. Wiring and code included. https://www.youtube.com/embed/GE4I10IZ1jY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=93 2026-08-26 https://robojax.com/images/video_thumbs/90_76zxBjIK3WM.jpg Using BMP180 Digital temperature and pressure Sensor with Arduino RJT93 Measure temperature and barometric pressure with BMP180 sensor and Arduino. Wire I2C, read data in Celsius, Fahrenheit, millibars, and inches of mercury. https://www.youtube.com/embed/76zxBjIK3WM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=94 2026-08-26 https://robojax.com/images/video_thumbs/91_t14ly7Y09oI.jpg Laser Distance measurement with 6pin VL53L0X and LCD1602-I2C for Arduino RJT94 Measure distance with the VL53L0X laser sensor and display results on an LCD1602-I2C for Arduino. Wire, code, and read distance in mm or cm. https://www.youtube.com/embed/t14ly7Y09oI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=95 2026-08-26 https://robojax.com/images/video_thumbs/92_h9JDlQXpi2w.jpg Using XYC-WB-D1 BISS0001 Motion body sensor for Arduino RJT95 Detect motion with the BYC-WB-D1 module based on BISS0001 and Arduino. Wire VCC, GND, OUT to trigger a buzzer and monitor detection via serial. https://www.youtube.com/embed/h9JDlQXpi2w?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=96 2026-08-26 https://robojax.com/images/video_thumbs/93_b_xvu6wWafA.jpg Lesson 89: How to control 360 Continuous Servo with Arduino RJT96 Control a continuous 360° servo with Arduino. Send commands via Serial Monitor to rotate left, right, or stop. Includes wiring, PWM details, and code. https://www.youtube.com/embed/b_xvu6wWafA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=97 2026-08-26 https://robojax.com/images/video_thumbs/94_uhh7ik02aDc.jpg How to use MPU-6050 Accelerometer and Gyroscope with Arduino code RJT97 Measure acceleration and angular velocity with the MPU-6050 accelerometer and gyroscope module on Arduino. Wire I2C, calibrate gyro offsets, and read real-time data. https://www.youtube.com/embed/uhh7ik02aDc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=98 2026-08-26 https://robojax.com/images/video_thumbs/95_uIz6WIis4dc.jpg Using MPU6050 with LCD1602-I2C display with Arduino code RJT98 Display MPU-6050 accelerometer and gyroscope X, Y, Z angles on an LCD1602 I2C display with Arduino. Includes wiring and code. https://www.youtube.com/embed/uIz6WIis4dc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=99 2026-08-26 https://robojax.com/images/video_thumbs/96_ixe--SXemp8.jpg Display Values from MPU-6050 on LCD2004 I2C Display RJT99 Display MPU-6050 gyroscope and accelerometer angles on LCD 1602 or LCD2004 with Arduino. Wiring and code for real-time X, Y, Z axis data. https://www.youtube.com/embed/ixe--SXemp8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=100 2026-08-26 https://robojax.com/images/video_thumbs/97_DKmNSCMPDjE.jpg Introduction to LCD2004 LCD display with I2C module for Arduino RJT100 Display text on LCD2004 with I2C using Arduino and LiquidCrystal_I2C library. Wiring, code examples, and I2C address tips for 20x4 LCD. https://www.youtube.com/embed/DKmNSCMPDjE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=101 2026-08-26 https://robojax.com/images/video_thumbs/98_bqMMIbmYJS0.jpg LCD1602 I2C Address for Arduino explained and how to set I2C address RJT101 Set I²C addresses and scan for LCD1602 and LCD2004 displays using an I²C scanner with Arduino and BMP-180 sensor. Includes wiring and code. https://www.youtube.com/embed/bqMMIbmYJS0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=102 2026-08-26 https://robojax.com/images/video_thumbs/99_mzwovYcozvI.jpg How to use MPU-9250 Gyroscope, Accelerometer, Magnetometer for Arduino RJT102 Read MPU-9250 accelerometer, gyroscope, and magnetometer data with Arduino. Wiring, code, and I2C setup for motion tracking in robotics and drones. https://www.youtube.com/embed/mzwovYcozvI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=103 2026-08-26 https://robojax.com/images/video_thumbs/100_2gmkubeHUXw.jpg How to use LM75A Temperature sensor with Arduino code RJT103 Measure temperature in Celsius and Fahrenheit with the LM75A sensor and Arduino using I2C. Wiring, code, and serial monitor output included. https://www.youtube.com/embed/2gmkubeHUXw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=104 2026-08-26 https://robojax.com/images/video_thumbs/940_d4bs8A8iMJ0.jpg How to use 4x3 Keypad with Arduino Read a 4x3 keypad with Arduino using the Keypad library. Wire rows and columns to digital pins, then print key presses to the serial monitor. https://www.youtube.com/embed/d4bs8A8iMJ0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=105 2026-08-26 https://robojax.com/images/video_thumbs/102_hVo_msVMlaI.jpg Using LM75A with LCD1602 I2C to display temperature on LCD RJT105 Display LM75A temperature sensor readings in Celsius and Fahrenheit on an LCD1602 I2C screen with Arduino. Wiring and code included. https://www.youtube.com/embed/hVo_msVMlaI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=106 2026-08-26 https://robojax.com/images/video_thumbs/103_DVp9k3xu9IQ.jpg How to use Allegro ACS712 AC/DC Current Sensor with Arduino RJT106 Measure AC and DC current with the Allegro ACS712 sensor and Arduino. Wire the sensor, read analog output, and display real-time current on the serial monitor. https://www.youtube.com/embed/DVp9k3xu9IQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=107 2026-08-26 https://robojax.com/images/video_thumbs/104_kzXouSzvcp8.jpg Allegro ACS712 with LCD1602 and LCD2004 with I2C to display current using Arduino RJT107 Measure AC and DC current with the Allegro ACS712 sensor and display readings on an LCD1602 or LCD2004 via I2C. Wiring and code for Arduino. https://www.youtube.com/embed/kzXouSzvcp8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=108 2026-08-26 https://robojax.com/images/video_thumbs/105_TTqoKcpIWkQ.jpg Why use Resistors with Push buttons and how to use them without resistor with Arduino RJT108 Understand why resistors are essential with push buttons and switches on Arduino. Learn wiring configurations, INPUT_PULLUP, and stable readings. https://www.youtube.com/embed/TTqoKcpIWkQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=109 2026-08-26 https://robojax.com/images/video_thumbs/106_tCJ2Q-CT6Q8.jpg Complete Guide for 15A 400W MOSFET AOD4184A to control motor or load RJT109 Control motors and loads with the 15A 400W AOD4184A MOSFET module and Arduino. Use PWM to adjust speed and brightness, with high-current testing up to 20A. https://www.youtube.com/embed/tCJ2Q-CT6Q8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=110 2026-08-26 https://robojax.com/images/video_thumbs/107_0PnAyt51IU4.jpg Using CJMCU VL53L0X ToF using laser to measure distance with Arduino RJT110 Measure distance up to 2 meters with the CJMCU VL53L0X laser distance meter and Arduino. Wiring guide, code, and live demo for accurate readings. https://www.youtube.com/embed/0PnAyt51IU4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=111 2026-08-26 https://robojax.com/images/video_thumbs/108_muAkBQb24NI.jpg Remote 1: How to decode any remote controller code with Arduino RJT111 Decode black or white IR remote keys with Arduino and VS1838B receiver. Wire it, install IRremote library, and display pressed keys on serial monitor. https://www.youtube.com/embed/muAkBQb24NI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=112 2026-08-26 https://robojax.com/images/video_thumbs/109_j5kb0WBpD30.jpg Remote 2: How to control AC bulb using any Infrared Remote with Arduino and relay RJT112 Control an AC bulb with any infrared remote using Arduino and relay. Decode IR signals to switch a 5V relay module and operate a light fixture safely. https://www.youtube.com/embed/j5kb0WBpD30?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=113 2026-08-26 https://robojax.com/images/video_thumbs/110_Wp7hX9UErSQ.jpg Remote 4: Controlling Servo motor with IR Remote using Arduino code RJT113 Control a servo motor wirelessly with an IR remote and Arduino. Wiring guide, code, and button mapping for VS1838B receiver. https://www.youtube.com/embed/Wp7hX9UErSQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=114 2026-08-26 https://robojax.com/images/video_thumbs/111_eW9WgPlcPAw.jpg Start using Digispark USB ATtiny85 Arduino board with blink and relay example RJT114 Start using the Digispark USB ATtiny85 Arduino board. Explore its GPIO pins, power options, and run a blink sketch to test the onboard LED with the Arduino IDE. https://www.youtube.com/embed/eW9WgPlcPAw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=115 2026-08-26 https://robojax.com/images/video_thumbs/112_xA66hXYRx9I.jpg How to use Arduino as TV Remote Controller with Infrared RJT115 Turn an Arduino Uno into a TV remote. Decode IR signals with a VS1838B receiver and send them with an IR LED to control any device. https://www.youtube.com/embed/xA66hXYRx9I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=116 2026-08-26 https://robojax.com/images/video_thumbs/113_QQ7iDagQnQM.jpg Using HC-SR501 Motion Sensor with relay and Arduino code to turn ON AC bulb RJT116 Control an AC bulb with the HC-SR501 motion sensor and a relay using Arduino. Wiring, code, and demonstration for automatic lighting. https://www.youtube.com/embed/QQ7iDagQnQM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=117 2026-08-26 https://robojax.com/images/video_thumbs/114_e0pvfJbdw_o.jpg Remote 3: Controlling DC motor with IR Remote controller using Arduino and L293D RJT117 Control a DC motor's direction and speed using an IR remote, Arduino Uno, and L293D driver. Includes wiring guide and code explanation. https://www.youtube.com/embed/e0pvfJbdw_o?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=118 2026-08-26 https://robojax.com/images/video_thumbs/115_akQoGNUzhHI.jpg Control Speed and Direction DC motor using L293B L293D motor with Aarduino PWM RJT118 Control DC motor speed and direction with L293D driver and Arduino PWM. Wiring guide, code explanation, and project ideas for robotics and automation. https://www.youtube.com/embed/akQoGNUzhHI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=119 2026-08-26 https://robojax.com/images/video_thumbs/116_dtc4UL2bEs4.jpg EAZY-RL 12V Voltage Control/Delay Switch/OverVoltage/Under Voltage Protection Module Arduino RJT119 Control an Eazy-RL 12V programmable timer with voltage range sensor using Arduino. See how to set up and program this module for timed switching. https://www.youtube.com/embed/dtc4UL2bEs4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=120 2026-08-26 https://robojax.com/images/video_thumbs/117_-uQKBDTWHPM.jpg Current Sensing with Arduino Motor Shield with L298N L298P RJT120 Measure DC motor current with an Arduino motor shield (L298N/L298P). Read analog voltage, convert to amps, and trigger actions like braking on high load. https://www.youtube.com/embed/-uQKBDTWHPM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=121 2026-08-26 https://robojax.com/images/video_thumbs/118_kIgbjyqNrV8.jpg Using Arduino Motor Shield to control 2 DC motors L298P RJT121 Control two DC motors with an Arduino Uno and L298N motor shield. Set speed, direction, and brake independently for each motor in your robot or vehicle project. https://www.youtube.com/embed/kIgbjyqNrV8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=122 2026-08-26 https://robojax.com/images/video_thumbs/119_WUeLbif-6YQ.jpg DfRobot Power Shield Complete Guide and Test RJT122 Use the DFRobot Power Shield with Arduino UNO to display output voltage on serial monitor or LCD1602. Includes code and library download instructions. https://www.youtube.com/embed/WUeLbif-6YQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=123 2026-08-26 https://robojax.com/images/video_thumbs/120_N71djcUZKk0.jpg Complete Guide to DFRobot Motor Shield L298N for Arduino UNO RJT123 Control two DC motors with the DFRobot Motor Shield L298N for Arduino Uno. Use moveMotor() and brake() functions for easy, minimal-code motor control. https://www.youtube.com/embed/N71djcUZKk0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=124 2026-08-26 https://robojax.com/images/video_thumbs/121_hbRpr1HbDf8.jpg Extract GPS location in Arduino with Ublox Neo-6 and Neo 7m GPS modules RJT124 Get GPS location from U-blox Neo-6M or Neo-7M with Arduino. Wire module, use TinyGPS++ library, and read latitude and longitude coordinates. https://www.youtube.com/embed/hbRpr1HbDf8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=125 2026-08-26 https://robojax.com/images/video_thumbs/122_eAANkWDvusU.jpg 3V 5V Low Control High Voltage 12V 24V 36V E-switch MOSFET Module For Arduino RJT125 Control motor speed with the IRF5305 E-Switch module. See wiring, three code examples, and current handling tests at 5V and 24V. https://www.youtube.com/embed/eAANkWDvusU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=126 2026-08-26 https://robojax.com/images/video_thumbs/123_dNfGwNHBqMY.jpg XH-W1411 DC 12V Multi-functional Temperature Controller Thermostat Switch RJT126 Control temperature with the XH-W1411 DC 12V thermostat switch. Set start/stop values, use intermittent or time-switch modes for greenhouses, aquaculture, and more. https://www.youtube.com/embed/dNfGwNHBqMY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=127 2026-08-26 https://robojax.com/images/video_thumbs/124_su2-dqtkOTY.jpg Lesson 58: How to use RGB LED with Arduino code calculate resistor value RJT127 Control RGB LEDs with Arduino and calculate resistor values for common-cathode and common-anode configurations. Code and wiring guide for hobbyists. https://www.youtube.com/embed/su2-dqtkOTY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=128 2026-08-26 https://robojax.com/images/video_thumbs/125_Q9aBI4ELKC4.jpg Lesson 68, Home Automation: control 16 Channel Relay module using Arduino control 16 AC loads RJT12 Control each relay on a 16-channel relay module with Arduino Uno. Wiring guide, code, and demonstration for switching AC/DC loads like lights and fans. https://www.youtube.com/embed/Q9aBI4ELKC4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=129 2026-08-26 https://robojax.com/images/video_thumbs/126_N-fFk51Eb8s.jpg How to use relay with Arduino to control AC or DC load with bare relay RJT129 Drive a relay with Arduino using a transistor to switch it on and off. See the wiring and code for controlling high-power loads safely. https://www.youtube.com/embed/N-fFk51Eb8s?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=130 2026-08-26 https://robojax.com/images/video_thumbs/127_6DGQhQgr7Ak.jpg Home Automation: Control a Bulb ON/OFF time using Arduino Relay Timer V 1.0 RJT130 Set an Arduino relay timer from 0 to any seconds using a potentiometer. Add a second pot for fine control. Wiring and code for Robojax Relay Timer V1.0. https://www.youtube.com/embed/6DGQhQgr7Ak?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=131 2026-08-26 https://robojax.com/images/video_thumbs/128_BhEIFzFSMuE.jpg Home Automation: Robojax Relay Timer with LCD1602-I2C V 1.1 unlimited time RJT131 Set an Arduino relay timer from 0 to any seconds using a potentiometer and LCD1602-I2C. Fine and coarse control with two pots for precise timing. https://www.youtube.com/embed/BhEIFzFSMuE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=132 2026-08-26 https://robojax.com/images/video_thumbs/129_zJ-yd4vYn8s.jpg Robojax Touch Counter V1 (simple counter) RJT132 Count touches with the TTP223 touch module and Arduino. Display the count on the serial monitor and reset it with a button. Simple Arduino counter project. https://www.youtube.com/embed/zJ-yd4vYn8s?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=133 2026-08-26 https://robojax.com/images/video_thumbs/130_5A9jPD5nUCw.jpg Robojax Touch Counter V2 ( LCD1602-I2C display ) RJT133 Build a touch counter with Arduino, TTP223 touch sensor, and LCD1602-I2C display. Count touches, reset with a button, and view on serial monitor. https://www.youtube.com/embed/5A9jPD5nUCw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=134 2026-08-26 https://robojax.com/images/video_thumbs/131_VzH9iEqrm0E.jpg Robojax Touch Counter V3 using TM1637 4 digit LED display RJT134 Build a touch counter with Arduino Uno, TTP223 sensor, and TM1637 4-digit LED display. Each touch increments the count, reset button clears it. Includes wiring and code. https://www.youtube.com/embed/VzH9iEqrm0E?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=135 2026-08-26 https://robojax.com/images/video_thumbs/132_27KjMfPH1dk.jpg Using multiple TM1637 4 digits LED Display with Arduino Connect two or more TM1637 4-digit LED displays to an Arduino. Code supports small blue and large black modules for multi-display projects. https://www.youtube.com/embed/27KjMfPH1dk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=136 2026-08-26 https://robojax.com/images/video_thumbs/133_7RQ8QoJWhpY.jpg Using NJK-5002C Hall Proximity Sensor with Arduino code RJT135 Use the NJK-5002C Hall sensor with Arduino to control DC or AC loads. See wiring diagrams for the sensor with and without a relay module. https://www.youtube.com/embed/7RQ8QoJWhpY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=137 2026-08-26 https://robojax.com/images/video_thumbs/134_L6ekl2ABcuY.jpg How to use two or more LCD1602 I2C modules with Arduino Control two or more LCD1602-I2C displays with Arduino Uno. Set unique I2C addresses, wire SDA/SCL, and display data on multiple screens. https://www.youtube.com/embed/L6ekl2ABcuY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=138 2026-08-26 https://robojax.com/images/video_thumbs/135_VGqONmUinqA.jpg How to use MAX6675 thermocouple k type with Arduino RJT138 Read temperature with a MAX6675 K-type thermocouple sensor and Arduino, displaying readings on the serial monitor. https://www.youtube.com/embed/VGqONmUinqA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=139 2026-08-26 https://robojax.com/images/video_thumbs/136_BlhpktgPdKs.jpg Using MAX6675 Thermocouple with LCD1602 and Arduino RJT139 Read temperature with a MAX6675 K-type thermocouple and display it on an LCD1602 I2C screen using Arduino. https://www.youtube.com/embed/BlhpktgPdKs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=140 2026-08-26 https://robojax.com/images/video_thumbs/137_c90NszbNG8c.jpg Using 2 or more LCD1602 with MAX6675 thermocouple k type sensor with Arduino RJT140 Read temperature from two MAX6675 K-type thermocouple sensors with Arduino and display on two or more I2C LCD1602s. Wiring and code included. https://www.youtube.com/embed/c90NszbNG8c?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=141 2026-08-26 https://robojax.com/images/video_thumbs/137_c90NszbNG8c.jpg Using 2 or more LCD1602 with MAX6675 thermocouple k type sensor with Arduino RJT140 Read temperature from two MAX6675 K-type thermocouple sensors and display readings on one LCD1602 I2C with Arduino. Wiring and code included. https://www.youtube.com/embed/c90NszbNG8c?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=142 2026-08-26 https://robojax.com/images/video_thumbs/138_lQL6dfL_rsg.jpg Home Automation: Control 16 channel relay with CD74HC4067 Multiplexer and Arduino with 6 wires RJT14 Control a 16-channel relay with an Arduino using the CD74HC4067 multiplexer and only 6 wires. See code to switch one channel at a time via multiplexing. https://www.youtube.com/embed/lQL6dfL_rsg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=143 2026-08-26 https://robojax.com/images/video_thumbs/139_WQ3oFyF5qeY.jpg Lesson 74: Using 2 or Sharp Infrared Sensor Module with Arduino RJT143 Measure distance with a Sharp infrared sensor module and Arduino. See how to wire and read analog output for accurate proximity sensing. https://www.youtube.com/embed/WQ3oFyF5qeY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=144 2026-08-26 https://robojax.com/images/video_thumbs/140_Vmrmp7reHOY.jpg How to get additional 5V (or 3.3V for 3.3V boards) and GND pin from Arduino Get additional 5V and GND pins from your Arduino using code or a breadboard. Watch the video for wiring and programming steps to expand your power pins. https://www.youtube.com/embed/Vmrmp7reHOY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=145 2026-08-26 https://robojax.com/images/video_thumbs/141_RRQASevYK3g.jpg Lesson 84: How to change the I2C address for VL53L0X laser distance sensor RJT145 Change the I2C address of a VL53L0X laser distance sensor (GY-530) with Arduino code to avoid conflicts on the bus. https://www.youtube.com/embed/RRQASevYK3g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=146 2026-08-26 https://robojax.com/images/video_thumbs/142_2AEzQtKhBBY.jpg How to use 16 Channel Touch TTP229 module with Arduino RJT146 Use a TTP229 16-channel touch button with Arduino to control 16 devices. Wire the module and program it to read touch inputs for your projects. https://www.youtube.com/embed/2AEzQtKhBBY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=147 2026-08-26 https://robojax.com/images/video_thumbs/143_3EZecphNdAI.jpg Home Automation: Using 4 Push button push-ON and push-OFF 4 relays with Arduino RJT147 Toggle four relays with four push buttons on an Arduino. Push-on, push-off control for each relay with downloadable code for 4-channel relay modules. https://www.youtube.com/embed/3EZecphNdAI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=148 2026-08-26 https://robojax.com/images/video_thumbs/143_3EZecphNdAI.jpg Home Automation: Using 4 Push button push-ON and push-OFF 4 relays with Arduino RJT147 Control a 4-channel relay with four push buttons using Arduino. Press and hold to keep relay ON, release to turn OFF. Includes wiring and code. https://www.youtube.com/embed/3EZecphNdAI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=149 2026-08-26 https://robojax.com/images/video_thumbs/144_f3GqRMQ8jYs.jpg How to use seven segment LED display with Arduino RJT149 Display digits on a seven-segment LED display with Arduino. Code for common anode and common cathode displays, with circuit shown in the video tutorial. https://www.youtube.com/embed/f3GqRMQ8jYs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=150 2026-08-26 https://robojax.com/images/video_thumbs/145_Rfaz5qOLKYQ.jpg Home Automation: 4 channel Solid State Relay with Arduino To control 4 bulbs or loads RJT150 Turn on or off four solid-state relays with Arduino. Control 4-channel SSR modules for switching AC or DC loads in your projects. https://www.youtube.com/embed/Rfaz5qOLKYQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=151 2026-08-26 https://robojax.com/images/video_thumbs/146_MbSe9pOytlo.jpg How to use MCP9808 Temperature Sensor with Arduino code RJT151 Use the Microchip MCP9808 temperature sensor with Arduino to measure temperature accurately. See code and test results in this tutorial. https://www.youtube.com/embed/MbSe9pOytlo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=152 2026-08-26 https://robojax.com/images/video_thumbs/147_F5rhnFX3_w8.jpg [Solved] Received new TM1637 but not working? RJT152 Fix a non-working TM1637 LED display. Use test code and library to diagnose and solve the issue with your TM1637 module. https://www.youtube.com/embed/F5rhnFX3_w8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=153 2026-08-26 https://robojax.com/images/video_thumbs/148__giGPBS_WAo.jpg How to use 2 channel Solid State relay SSR with Arduino RJT153 Use a two-channel solid-state relay with Arduino to switch an AC bulb or load on and off. Wiring and code for the G3MB relay module. https://www.youtube.com/embed/_giGPBS_WAo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=154 2026-08-26 https://robojax.com/images/video_thumbs/149_-I1nReV_oZg.jpg How to use DS1307 Real Time Clock with Arduino code RJT154 Use a DS1307 real-time clock with Arduino to keep accurate time. This guide shows how to connect and program the RTC module for your projects. https://www.youtube.com/embed/-I1nReV_oZg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=155 2026-08-26 https://robojax.com/images/video_thumbs/150_dkESWpdDBYk.jpg Lesson 67: Controlling 8 channel relay with a 4x3 keypad to control 4 AC or DC loads RJT155 Control eight AC or DC loads with an 8-channel relay using a 4x3 keypad and Arduino. Code and wiring guide for keypad-based relay control. https://www.youtube.com/embed/dkESWpdDBYk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=156 2026-08-26 https://robojax.com/images/video_thumbs/151_Wj7i1fQDeTk.jpg Digispark Keyboard to display information like Serial Monitor RJT156 Display debugging information from Digispark on the Arduino IDE Serial Monitor. See how to output text and values for easy troubleshooting. https://www.youtube.com/embed/Wj7i1fQDeTk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=157 2026-08-26 https://robojax.com/images/video_thumbs/152_THgyVQE5yrA.jpg Control Relay Modul with Digispark USB Attiny85 board RJT157 Control an AC bulb with a 5V relay and Digispark USB board. Turn on or off AC or DC loads using this compact ATtiny85-based board. https://www.youtube.com/embed/THgyVQE5yrA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=158 2026-08-26 https://robojax.com/images/video_thumbs/153_V-o32As_Xv4.jpg Display distance from Ultrasonic sensor as bargraph on LCD1602 LCD2004 using Arduino RJT158 Display HC-SR04 ultrasonic sensor distance as a bar graph on LCD1602-I2C or LCD2014-I2C using Arduino and Robojax LCD Bargraph Library. Step-by-step wiring and code. https://www.youtube.com/embed/V-o32As_Xv4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=159 2026-08-26 https://robojax.com/images/video_thumbs/154_gLtVRcyOXaU.jpg Display input voltage as bargraph on LCD using Arduino and potentiometer RJT159 Display potentiometer voltage at A0 as a bar graph on LCD1602-I2C or LCD2014-I2C using Arduino and Robojax LCD Bargraph Library. Step-by-step wiring and code. https://www.youtube.com/embed/gLtVRcyOXaU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=160 2026-08-26 https://robojax.com/images/video_thumbs/155_vJStXiSS23Q.jpg Distance a bargraph using VL53L0X Laser sensor on LCD display for Arduino RJT160 Display VL53L0X laser distance measurements as a bar graph on LCD1602-I2C or LCD2004-I2C using Arduino and Robojax LCD Bargraph Library. https://www.youtube.com/embed/vJStXiSS23Q?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=161 2026-08-26 https://robojax.com/images/video_thumbs/156_0IojNYgDD7U.jpg Display temperature from BMP180 as bargraph on LCD for Arduino RJT161 Display BMP180 temperature as a bar graph on LCD1602-I2C and LCD2014-I2C displays. See how to measure and visualize temperature data. https://www.youtube.com/embed/0IojNYgDD7U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=162 2026-08-26 https://robojax.com/images/video_thumbs/157_k13iTmvPtUU.jpg Control XY-1250 10-50V 60A 3000W PWM motor Speed controller using Arduino RJT162 Control the XY-1250 10–50A/60A 3000W PWM motor speed controller with Arduino. Modify the 60A module for external signal control via potentiometer or code. https://www.youtube.com/embed/k13iTmvPtUU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=163 2026-08-26 https://robojax.com/images/video_thumbs/157_k13iTmvPtUU.jpg Control XY-1250 10-50V 60A 3000W PWM motor Speed controller using Arduino RJT162 Control XY-1250 10-50A/60A 3000W PWM motor speed controller with Arduino without potentiometer. Modify module and use code for speed control. https://www.youtube.com/embed/k13iTmvPtUU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=164 2026-08-26 https://robojax.com/images/video_thumbs/158_a4b_A0ZDvwc.jpg Juntek VAT4300 Wireless Current Power multi-function Energy meter RJT164 Measure current and power with the Juntek VAT4300 wireless multi-function energy meter. See how to use and test this device in a hands-on video. https://www.youtube.com/embed/a4b_A0ZDvwc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=165 2026-08-26 https://robojax.com/images/video_thumbs/159_7hBtXdoaAOY.jpg How to use DS3231 RTC clock module Alarm with Arduino RJT165 Use the DS3231 real-time clock module with Arduino to turn a buzzer and LED on at set alarm times. https://www.youtube.com/embed/7hBtXdoaAOY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=166 2026-08-26 https://robojax.com/images/video_thumbs/160_ykgXKUuvtbE.jpg Home Automation: Using DS1307 RTC clock as Alarm to turn AC bulb ON or OFF with Arduino RJT166 Turn an AC bulb ON or OFF at set times using the DS1307 RTC module with Arduino. Build an alarm clock that controls AC loads with this wiring and code guide. https://www.youtube.com/embed/ykgXKUuvtbE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=167 2026-08-26 https://robojax.com/images/video_thumbs/161_6O9SFvEP6Bs.jpg What is Arduino Uno PWM frequency and rising time and falling time RJT167 Measure the PWM frequency of Arduino Uno pins and see rising/falling times with this sketch. See the actual signal on oscilloscope for pins 3,5,6,9,10,11. https://www.youtube.com/embed/6O9SFvEP6Bs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=168 2026-08-26 https://robojax.com/images/video_thumbs/162_InNHrtnZgUQ.jpg BMP280 Barometric pressure and temperature sensor with Arduino RJT168 Measure humidity, temperature, and pressure with the BMP280 sensor and Arduino. See how to connect and program it for your projects. https://www.youtube.com/embed/InNHrtnZgUQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=169 2026-08-26 https://robojax.com/images/video_thumbs/163_PUL5DZ9TA2o.jpg Using BTS7960 BTN8982TA PWM H Bridge motor controller module with Arduino library RJT169 Control a BTS7960 DC motor driver module with Arduino to set direction and speed via PWM. Wiring, code, and library setup for high-current motors up to 43A. https://www.youtube.com/embed/PUL5DZ9TA2o?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=170 2026-08-26 https://robojax.com/images/video_thumbs/163_PUL5DZ9TA2o.jpg Using BTS7960 BTN8982TA PWM H Bridge motor controller module with Arduino library RJT169 Control multiple DC motors with the BTS7960 module and Arduino. Learn wiring, PWM speed control, and code for bidirectional motor rotation. https://www.youtube.com/embed/PUL5DZ9TA2o?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=171 2026-08-26 https://robojax.com/images/video_thumbs/164_KDc2Z43DzT0.jpg Using ISD1700 Sound Audio recorder with Arduino Code to record, play, erase sound RJT171 Record and play sound with Arduino using ISD1700/ISD1760 chip. Control record, play, erase, and next clip functions with this code. https://www.youtube.com/embed/KDc2Z43DzT0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=173 2026-08-26 https://robojax.com/images/video_thumbs/165_5wUxBjpXzL8.jpg Using vibration motor with Arduino and with voltage trigger RJT173 Control a vibration motor with Arduino. See how to wire and program the motor driver for precise vibration control in your projects. https://www.youtube.com/embed/5wUxBjpXzL8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=174 2026-08-26 https://robojax.com/images/video_thumbs/853_lrEW8xlSnuY.jpg Control Speed of Stepper Motor 28BYJ-48 using Potentiometer with Arduino Control the speed of a 28BYJ-48 stepper motor with a potentiometer and Arduino. Read an analog knob to adjust delay between half-steps for smooth, real-time speed control. https://www.youtube.com/embed/lrEW8xlSnuY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=175 2026-08-26 https://robojax.com/images/video_thumbs/166_hVe4TSRV4ww.jpg Control 360 continuous Servo with push button switches and Arduino RJT175 Control a 360° servo with three push-button switches for CW, CCW, and stop actions. See wiring and code in this tutorial. https://www.youtube.com/embed/hVe4TSRV4ww?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=176 2026-08-26 https://robojax.com/images/video_thumbs/167_Q5y18rgTAhA.jpg How to use HTU21D and HTU21DF Humidity and Temperature Sensor with Arduino RJT176 Measure temperature and humidity with the HTU21DF sensor and Arduino. Wire the I2C sensor, run basic code, and view readings on the Serial Monitor. https://www.youtube.com/embed/Q5y18rgTAhA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=177 2026-08-26 https://robojax.com/images/video_thumbs/167_Q5y18rgTAhA.jpg How to use HTU21D and HTU21DF Humidity and Temperature Sensor with Arduino RJT176 Measure temperature and humidity with the HTU21DF sensor and Arduino using custom code. Display Celsius, Fahrenheit, or Kelvin and humidity on the serial monitor. https://www.youtube.com/embed/Q5y18rgTAhA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=178 2026-08-26 https://robojax.com/images/video_thumbs/167_Q5y18rgTAhA.jpg How to use HTU21D and HTU21DF Humidity and Temperature Sensor with Arduino RJT176 Read temperature and humidity from two HTU21DF sensors with Arduino over I2C. Wire sensors, run code, and display values on serial monitor. https://www.youtube.com/embed/Q5y18rgTAhA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=179 2026-08-26 https://robojax.com/images/video_thumbs/168_IF46cqvKijU.jpg Display Temperature from HTU21DF on LCD1602 or LCD2004 using Arduino RJT179 Display HTU21D temperature and humidity readings on an I2C LCD with Arduino. See Celsius, Fahrenheit, Kelvin, and humidity on a 16x2 display. https://www.youtube.com/embed/IF46cqvKijU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=180 2026-08-26 https://robojax.com/images/video_thumbs/169_kpGvzNWLHuk.jpg Display temperature from HTU21D as bargraph on LCD with Arduino RJT180 Display HTU21D temperature and humidity as a bar graph on an LCD 1602 with Arduino. Wire I2C sensor and screen, then run code to show Celsius, Fahrenheit, Kelvin, and RH. https://www.youtube.com/embed/kpGvzNWLHuk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=181 2026-08-26 https://robojax.com/images/video_thumbs/170_cYTICj4DWYc.jpg E181 Control Position and Speed of Stepper motor with L298N module using Arduino RJT181 Control a 4-wire stepper motor with an L298N module and Arduino. Rotate clockwise/counterclockwise, adjust speed, and set position with a potentiometer. Includes code examples. https://www.youtube.com/embed/cYTICj4DWYc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=182 2026-08-26 https://robojax.com/images/video_thumbs/171_u2HsiTS8niQ.jpg Arduino Millis function explained with 3 example RJT182 Understand the Arduino millis() function through three practical examples. See how to use millis() for timing and delays in your projects. https://www.youtube.com/embed/u2HsiTS8niQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=183 2026-08-26 https://robojax.com/images/video_thumbs/172_7dwWYn9_OhA.jpg How to use BME280 Temperature, Humidity and Pressure sensor with Arduino RJT183 Measure temperature, humidity, pressure, and altitude with the BME280 sensor and Arduino. Display readings in Celsius, Fahrenheit, Kelvin, and hPa on the serial monitor. https://www.youtube.com/embed/7dwWYn9_OhA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=184 2026-08-26 https://robojax.com/images/video_thumbs/173_EJ0-T4uXjAY.jpg Review of 150W DC-DC 10-32V to 12-35V 6A 05KJ Boost Converter RJT184 Review a 10–32 V to 12–35 V, 150 W boost converter module, testing its performance under various loads to assess real-world capability. https://www.youtube.com/embed/EJ0-T4uXjAY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=185 2026-08-26 https://robojax.com/images/video_thumbs/174_nxPgun6xjHM.jpg Pro Micro ATMEGA32U4 Arduino Pins and 5V, 3.3V Explained RJT185 Explore Pro Micro ATmega32U4 Arduino pins, 5V and 3.3V power options, digital and analog pins, PWM testing, and driver installation for your projects. https://www.youtube.com/embed/nxPgun6xjHM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=186 2026-08-26 https://robojax.com/images/video_thumbs/175_0KbdIg2qkx0.jpg 433MHz 12V 4CH Channel Relay RF Wireless Remote Control Switch KR1204 FOB RJT186 Control AC/DC loads remotely with the KR1204 433MHz 12V 4-channel relay module. Learn wiring, programming modes (momentary, toggle, latch), and safety tips. https://www.youtube.com/embed/0KbdIg2qkx0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=187 2026-08-26 https://robojax.com/images/video_thumbs/176_mXY_6LOekkw.jpg Lesson 45: Arduino Measure temperature, Pressure with BME280 with LCD1602 and LCD2004 RJT187 Display BME280 pressure, humidity, and temperature data on LCD1602-I2C or LCD2004 with Arduino. Custom functions show °C, °F, K, hPa, and elevation. https://www.youtube.com/embed/mXY_6LOekkw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=188 2026-08-26 https://robojax.com/images/video_thumbs/177_EapP4BhlYb0.jpg Modify this 3A PWM Motor Speed controller and control it with Arduino RJT188 Modify a 3A PWM motor speed controller to work with an Arduino. Control DC motors with PWM signals from your Arduino board. https://www.youtube.com/embed/EapP4BhlYb0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=189 2026-08-26 https://robojax.com/images/video_thumbs/178_en-SJookvjo.jpg Modify this 5A PWM Motor Speed controller and control it with Arduino RJT189 Control a 5A DC motor with an Arduino using a modified PWM module. Watch the video for full instructions on modifying and wiring. https://www.youtube.com/embed/en-SJookvjo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=190 2026-08-26 https://robojax.com/images/video_thumbs/179_ipFxYQkB5uw.jpg Hack: modify 20A DC 10-60V PWM Motor Speed Controller and control with Arduino RJT190 Modify a 20A DC PWM motor speed controller with an Arduino for precise speed control using a potentiometer. Wiring, code, and demo included. https://www.youtube.com/embed/ipFxYQkB5uw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=191 2026-08-26 https://robojax.com/images/video_thumbs/180_kgs_FILyppk.jpg Review of 20A DC 10-60V PWM Motor Speed Controller RJT191 Review a 20A DC PWM motor speed controller for 10-60V motors. See wiring, specs, and how to control speed with an Arduino PWM signal. https://www.youtube.com/embed/kgs_FILyppk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=192 2026-08-26 https://robojax.com/images/video_thumbs/181_PjPZaKUABxg.jpg Review of XL6012 5V-46V 5A Boost converter Module RJT192 Review the XL6012 5V-46V 5A boost converter module, a step-up DC-DC converter based on the XLSEMI XL6012 chip, for your power supply projects. https://www.youtube.com/embed/PjPZaKUABxg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=193 2026-08-26 https://robojax.com/images/video_thumbs/182_qB0drI56zGE.jpg Build Seven Segment LED clock with Arduino and DS3231 - RJT193 Build a seven-segment LED clock with Arduino using DS3231 RTC and RoboJax library. Easy wiring and code for accurate time display. https://www.youtube.com/embed/qB0drI56zGE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=194 2026-08-26 https://robojax.com/images/video_thumbs/183_4QpOErbx0nM.jpg Start Using Wemos D1 Mini NodeMCU WiFi ESP8266 module with Arduino RJT194 Set up a D1 Mini NodeMCU ESP8266 Wi-Fi board with Arduino IDE. Start programming this compact development board for IoT projects. https://www.youtube.com/embed/4QpOErbx0nM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=195 2026-08-26 https://robojax.com/images/video_thumbs/184_rUtDfadf8Jk.jpg Arduino LED blink using millis with different ON and OFF time - RJT195 Blink an LED with different ON and OFF times using millis() in Arduino. Learn to control timing without delay. https://www.youtube.com/embed/rUtDfadf8Jk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=196 2026-08-26 https://robojax.com/images/video_thumbs/185_mRAgS-CdURU.jpg Using LCD with Wemos D1 Mini ESP8266 with Arduino RJT196 Use an LCD1602-I2C display with D1 Mini, NodeMCU ESP8266, or Arduino. See wiring and code examples for I2C LCDs. https://www.youtube.com/embed/mRAgS-CdURU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=197 2026-08-26 https://robojax.com/images/video_thumbs/186_EbqIB9vJbsQ.jpg Check All WiFi Access Points using ESP8266 WiFi Scan Signal Strength with Arduino RJT197 Scan WiFi access points with ESP8266 NodeMCU or Wemos D1 Mini using Arduino. Display SSID, signal strength in dBm and percentage, MAC, encryption, and hidden status on serial monitor. https://www.youtube.com/embed/EbqIB9vJbsQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=198 2026-08-26 https://robojax.com/images/video_thumbs/187_HYMnCUtNMnw.jpg Display WiFi Access Points on LCD with ESP8266 signal strength as percentage RJT198 Display Wi-Fi signal strength percentage on an LCD1602-I2C using an ESP8266 with Arduino. Scan access points and show RSSI in dBm or percentage. https://www.youtube.com/embed/HYMnCUtNMnw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=199 2026-08-26 https://robojax.com/images/video_thumbs/188_g6k8sPJyif8.jpg Control AC bulb with 5V relay using Arduino RJT199 Control an AC bulb with an Arduino and a 5V relay. Code supports low-level and high-level trigger relays for simple on/off control. https://www.youtube.com/embed/g6k8sPJyif8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=200 2026-08-26 https://robojax.com/images/video_thumbs/189_omtQ5jNxZxQ.jpg Using DIYMore SHT2000 DC Digital Thermostat - RJT200 Use the DIYMore SHT2000 as a heater or cooler controller with temperature or humidity control. Learn to wire, set parameters, and troubleshoot LLL and HHH probe errors. https://www.youtube.com/embed/omtQ5jNxZxQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=201 2026-08-26 https://robojax.com/images/video_thumbs/190_d-iIchLyh48.jpg 4 channel Relay with Infrared remote and external signal control - Review of QIFEI RJT201 Control a QIFEI 4-channel relay with an infrared remote, push buttons, or an external signal. Learn wiring and programming for your project. https://www.youtube.com/embed/d-iIchLyh48?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=203 2026-08-26 https://robojax.com/images/video_thumbs/192_nTNH-PT6-84.jpg Complete Test/Review of 10A 0-100V LED DC Volt and Current Meter RJT203 Measure DC voltage and current with a 100V 10A LED meter. Wire, test accuracy, calibrate, and calculate shunt resistor value for correct readings. https://www.youtube.com/embed/nTNH-PT6-84?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=204 2026-08-26 https://robojax.com/images/video_thumbs/193_JMBgGO07YLM.jpg Home Automation: Change direction of rotation of DC motor using 2 relays and Arduino - RJT204 Control DC motor rotation direction with two relays and an Arduino. Simple and advanced code supports low-level or high-level trigger relays. https://www.youtube.com/embed/JMBgGO07YLM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=205 2026-08-26 https://robojax.com/images/video_thumbs/194_ebY-QpoatXM.jpg How to use XY-T01 Digital Thermostat Module - RJT205 Use the XY-T01 temperature and humidity controller as a heater or cooler thermostat with temperature or humidity control, with step-by-step examples. https://www.youtube.com/embed/ebY-QpoatXM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=206 2026-08-26 https://robojax.com/images/video_thumbs/195_pLvqh57T3s4.jpg Introduction to NodeMCU ESP8266 WiFi Development board with HTTP Client example- Robojax Send information to a remote location using an ESP8266 with an HTTP client example, explained in a hands-on video tutorial. https://www.youtube.com/embed/pLvqh57T3s4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=207 2026-08-26 https://robojax.com/images/video_thumbs/196_xy40LPu3fbc.jpg Turn ON and OFF LED using mobile App using Bluetooth on ESP32 board RJT207 Turn an LED on and off with an ESP32 board using Bluetooth from a mobile device. Control your LED wirelessly with this simple guide. https://www.youtube.com/embed/xy40LPu3fbc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=210 2026-08-26 https://robojax.com/images/video_thumbs/198_COssWn4Pcm4.jpg Using LCD1602 or LCD2004 with ESP32 - RJT210 Use an ESP32 with an LCD1602 or LCD2004 and an I2C module. Find the I2C address, wire the display, and run code to show text on the screen. https://www.youtube.com/embed/COssWn4Pcm4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=211 2026-08-26 https://robojax.com/images/video_thumbs/199_--Fj8QDlGuQ.jpg How to use ESP32 WiFi and Bluetooth with Arduino IDE full details with examples - RJT211 Send data from an ESP32 to a remote server over WiFi using HTTP GET requests. Code and wiring for the ESP32-WROOM-32 in Arduino IDE. https://www.youtube.com/embed/--Fj8QDlGuQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=212 2026-08-26 https://robojax.com/images/video_thumbs/200_dk-01OpKYuQ.jpg Using Heltec ESP32 OLED Wifi Kit - RJT212 Start using the Heltec ESP32 OLED Wi-Fi Kit with the default factory demo code for V2 boards. Get your board up and running quickly. https://www.youtube.com/embed/dk-01OpKYuQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=213 2026-08-26 https://robojax.com/images/video_thumbs/201_s4oNCpH_I0E.jpg Home Automation: How to use 7 Program 0.1s to 9999 minutes Relay Timer XY-LJ02- RJT213 Use the DROK XY-LJ02 relay timer for home automation with 7 programs and timing from 0.1s to 9999 minutes. Test it with various loads and voltages. https://www.youtube.com/embed/s4oNCpH_I0E?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=214 2026-08-26 https://robojax.com/images/video_thumbs/202_UXKu2Xtwj7c.jpg Using Analog input of ESP32 read Potentiometer DC voltage - RJT214 Read potentiometer voltage with an ESP32 microcontroller. Understand analog input pins and how to connect a potentiometer for variable voltage readings. https://www.youtube.com/embed/UXKu2Xtwj7c?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=215 2026-08-26 https://robojax.com/images/video_thumbs/203_5XCb3t8J4Kg.jpg $5 WiFi Camera Setup | ESP32 Wifi Setup view on Mobile phone - RJT215 Set up an ESP32 Camera with Arduino IDE and an Arduino Uno to stream video over WiFi. Adjust resolution by changing FRAMESIZE_UXGA in the code. https://www.youtube.com/embed/5XCb3t8J4Kg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=216 2026-08-26 https://robojax.com/images/video_thumbs/203_5XCb3t8J4Kg.jpg $5 WiFi Camera Setup | ESP32 Wifi Setup view on Mobile phone - RJT215 Start using the MH-Tiny ATTiny88 development board with Arduino IDE. Install drivers, add board URL, and program your first sketch. https://www.youtube.com/embed/5XCb3t8J4Kg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=217 2026-08-26 https://robojax.com/images/video_thumbs/204_S45upZ836vA.jpg How to use Capacitive touch pins of ESP32 Development board to control AC but or LED - RJT217 Control LEDs or AC bulbs using ESP32 built-in touch pins. Learn to use capacitive touch features of the ESP32 WiFi and Bluetooth microcontroller board. https://www.youtube.com/embed/S45upZ836vA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=218 2026-08-26 https://robojax.com/images/video_thumbs/205_R5ste5UHmQk.jpg Using MAX7219 8 Digits Seven Segment Display - RJT218 Use an 8-digit LED seven-segment display with MAX7219 and Arduino. See how to connect and program it in the Arduino IDE for numeric output. https://www.youtube.com/embed/R5ste5UHmQk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=219 2026-08-26 https://robojax.com/images/video_thumbs/206_k-f6lwwUTAs.jpg 74HC595 Seven Segment 2 Digits LED Display with decimal points for Arduino - RJT219 Display numbers on a two-digit seven-segment LED display with Arduino and 74HC595 shift registers. Wiring, code, and library explained for counters, timers, and more. https://www.youtube.com/embed/k-f6lwwUTAs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=220 2026-08-26 https://robojax.com/images/video_thumbs/207_fvEUuctttUU.jpg Review of XH-M602 Charge controller Operated with 220V AC - RJT220 Review the XH-M602 charge controller operated with 220V AC. See how it works and what to expect in this hands-on overview. https://www.youtube.com/embed/fvEUuctttUU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=221 2026-08-26 https://robojax.com/images/video_thumbs/208_hacb6rNQDfc.jpg How to use XY-DJ Battery Charge Control Module with Over Charge Protection Solar - RJT221 Use the XY-DJ charge control module with overcharge protection for 18650 lithium batteries. Wire a 6-40V DC source and control up to 10A charge current via relay. https://www.youtube.com/embed/hacb6rNQDfc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=222 2026-08-26 https://robojax.com/images/video_thumbs/209_1A4-6hDARQc.jpg How to use DHT11 DHT22 with NodeMCU ESP8266 to read temperature over WiFi - RJT222 Read DHT11 and DHT22 temperature and humidity wirelessly over Wi-Fi using ESP8266 NodeMCU. Set up Arduino IDE, install libraries, and view data on a browser. https://www.youtube.com/embed/1A4-6hDARQc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=223 2026-08-26 https://robojax.com/images/video_thumbs/210_wn5D7j1ybxY.jpg PWM DC Motor control with Arduino and L298N Module with library - RJT223 Control two DC motors with the L298N module and Arduino using a library. Learn wiring, PWM speed control, and code examples for precise motor direction and speed. https://www.youtube.com/embed/wn5D7j1ybxY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=224 2026-08-26 https://robojax.com/images/video_thumbs/210_wn5D7j1ybxY.jpg PWM DC Motor control with Arduino and L298N Module with library - RJT223 Control four DC motors with two L298N modules and an Arduino library. Learn wiring, PWM speed control, and direction commands for robotics projects. https://www.youtube.com/embed/wn5D7j1ybxY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=225 2026-08-26 https://robojax.com/images/video_thumbs/211__uz7YcOzvjU.jpg How to control 2 Servo or more with Potentiometers using Arduino - RJT225 Control two or more servo motors with separate potentiometers using an Arduino. Rotate each pot to move its servo from 0 to 180 degrees. Wiring and code included. https://www.youtube.com/embed/_uz7YcOzvjU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=226 2026-08-26 https://robojax.com/images/video_thumbs/212_WbH_H0hc76I.jpg Using L298N To control DC Motors with 2 Push buttons using Arduino - RJT226 Control two DC motors with L298N module and two push buttons using RoboJax library. Start, stop, and rotate CW or CCW with Arduino. https://www.youtube.com/embed/WbH_H0hc76I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=227 2026-08-26 https://robojax.com/images/video_thumbs/213_vss__pN5Ua0.jpg Review of 1200W 20A DC input, 8V-60V output, 12V-80V boost converter Review a 1200W, 20A DC input boost converter with 8V–60V output and 12V–80V input range. See test results with various loads and voltages. https://www.youtube.com/embed/vss__pN5Ua0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=228 2026-08-26 https://robojax.com/images/video_thumbs/214_qo7eJ6PUx2M.jpg Control 2 DC Motors with L298N module with potentiometer and 3 push buttons - RJT228 Control two DC motors with an L298N module using a potentiometer and three push buttons. Learn wiring for IN1, IN2, ENA and buttons with the Robojax library. https://www.youtube.com/embed/qo7eJ6PUx2M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=229 2026-08-26 https://robojax.com/images/video_thumbs/215_zJQf6bNodhE.jpg RobotDyn Control AC bulb with Arduino AC Dimmer - RJT229 Control an AC bulb with an Arduino using an AC light dimmer. Modify the RBDdimmer SerialMonitorDim sketch to fix issues and adjust for 50Hz regions. https://www.youtube.com/embed/zJQf6bNodhE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=230 2026-08-26 https://robojax.com/images/video_thumbs/216_1phdcshRZ_I.jpg RobotDyn Control AC load or AC bulb with Arduino AC Switch - RJT230 Control an AC bulb with an Arduino using a RobotDyn AC Switch Module. Turn AC loads on or off with this simple wiring and code example. https://www.youtube.com/embed/1phdcshRZ_I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=231 2026-08-26 https://robojax.com/images/video_thumbs/217_Nlpkt1jB1NY.jpg RobotDyn Control AC load or AC bulb with Arduino AC Switch with Push button - RJT231 Control an AC bulb with an Arduino AC switch using one push button. Push-on, push-off operation with a RobotDyn AC Switch Module. https://www.youtube.com/embed/Nlpkt1jB1NY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=232 2026-08-26 https://robojax.com/images/video_thumbs/218_Sc_iVfeocvg.jpg Arduino code for VL53L1X Time-of-Flight 400cm Laser distance sensor - RJT232 Measure distances up to 4 meters with the VL53L1X time-of-flight laser sensor and Arduino. Learn wiring, I2C setup, and code to read distance values. https://www.youtube.com/embed/Sc_iVfeocvg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=233 2026-08-26 https://robojax.com/images/video_thumbs/219_5xQ8vLavWKQ.jpg Speed control of DC motor using Temperature sensors like DHT11, DHT22 and L298N Motor driver - RJT23 Control DC motor speed with temperature using DHT11/DHT22 sensors and L298N module. As temperature rises, motor speeds up; as it drops, motor slows down. https://www.youtube.com/embed/5xQ8vLavWKQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=234 2026-08-26 https://robojax.com/images/video_thumbs/220_gOMHU0Q8upA.jpg IoT: Control Speed of DC motor with NodeMCU ESP8266 and L298N Module - RJT234 Control DC motor speed with NodeMCU ESP8266 and L298N module over Wi-Fi. Get Arduino code and wiring instructions for L298N and ESP8266. https://www.youtube.com/embed/gOMHU0Q8upA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=235 2026-08-26 https://robojax.com/images/video_thumbs/221_9lxdIAvV0l0.jpg Full Control of DC Motor with ESP8266 NodeMCU D1 Mini over WiFi - RJT235 Control a DC motor with an ESP8266 NodeMCU D1 Mini over Wi-Fi using an L298N module. Get Arduino code for full speed and direction control. https://www.youtube.com/embed/9lxdIAvV0l0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=236 2026-08-26 https://robojax.com/images/video_thumbs/222_Nc3XQakqgn8.jpg DSO138 Digital Oscilloscope Kit step by step build - RJT236 Build and solder the DSO138 digital oscilloscope kit. Test it using the built-in 1kHz square wave signal without a signal generator. Ideal for hobbyists. https://www.youtube.com/embed/Nc3XQakqgn8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=237 2026-08-26 https://robojax.com/images/video_thumbs/223_rg0nzCmUGG0.jpg Acrylic Case Assembly of DSO138 Digital Oscilloscope kit step by step - RJT237 Assemble the DSO138 digital oscilloscope kit with an acrylic case. Test the 1kHz square wave signal at the test point without a signal generator. https://www.youtube.com/embed/rg0nzCmUGG0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=238 2026-08-26 https://robojax.com/images/video_thumbs/224_7zLEJkVn9us.jpg How to use JYE Tech DSO138 Digital Oscilloscope kit - RJT238 Use the DSO138 digital oscilloscope kit to view its built-in 1kHz square wave test signal. See features and how to test the scope without a signal generator. https://www.youtube.com/embed/7zLEJkVn9us?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=239 2026-08-26 https://robojax.com/images/video_thumbs/225_stCqftdAjI4.jpg RobotDyn Control AC load or AC bulb with Arduino AC Switch with 2 Push buttons - RJT239 Control an AC bulb with an Arduino using a RobotDyn AC Switch Module and two push buttons. Turn the load on and off with simple button presses. https://www.youtube.com/embed/stCqftdAjI4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=240 2026-08-26 https://robojax.com/images/video_thumbs/226_JDgOYKo_zQ8.jpg Elegoo Smart Robot Car Kit V3: #3 How to move forward, reverse and turn left and right - RJT240 Control an Elegoo robot car to move forward, reverse, and turn left or right. See how to program these basic driving maneuvers. https://www.youtube.com/embed/JDgOYKo_zQ8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=241 2026-08-26 https://robojax.com/images/video_thumbs/227_tQdUfy0uyUQ.jpg Review of Yescom 30V 5A Regulated DC Bench Power Supply - RJT241 Review the Yescom PS305D 0-30V 5A DC regulated power supply. See its features, performance, and build quality in this hands-on overview. https://www.youtube.com/embed/tQdUfy0uyUQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=242 2026-08-26 https://robojax.com/images/video_thumbs/228_wtyw-Q_AlB0.jpg Elegoo Smart Robot Car #4: Obstacle Avoidance Stop and follow obstacle on straight path - RJT242 Program the ELEGOO Smart Robot Car V3 with HC-SR04 ultrasonic sensor to detect obstacles, stop, reverse, and follow paths. Arduino code and wiring included. https://www.youtube.com/embed/wtyw-Q_AlB0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=243 2026-08-26 https://robojax.com/images/video_thumbs/229_bal2STaoQ1M.jpg Control 16 Servo motors using PCA9685 Module and Arduino V2 - RJT243 Control up to 16 servo motors individually with a PCA9685 module and Arduino. Step-by-step wiring, code walkthrough, and power supply tips for precise robotic movements. https://www.youtube.com/embed/bal2STaoQ1M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=244 2026-08-26 https://robojax.com/images/video_thumbs/229_bal2STaoQ1M.jpg Control 16 Servo motors using PCA9685 Module and Arduino V2 - RJT243 Control 16 servo motors with a PCA9685 PWM module and Arduino. Use the V2 sketch to set any servo to a specific angle via I2C, e.g., servo #3 to 120 degrees. https://www.youtube.com/embed/bal2STaoQ1M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=245 2026-08-26 https://robojax.com/images/video_thumbs/229_bal2STaoQ1M.jpg Control 16 Servo motors using PCA9685 Module and Arduino V2 - RJT243 Control 16 servo motors simultaneously with a PCA9685 PWM module and Arduino. See how to drive all servos together using I2C in this V2 sketch. https://www.youtube.com/embed/bal2STaoQ1M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=246 2026-08-26 https://robojax.com/images/video_thumbs/230_fPrPRZlGdvA.jpg Control Servo motor with a Push Button: Move Servo and Return SPB-1 Control a servo motor with a push button using Arduino. Press the button to move the servo to 180 degrees and return. Wiring and code for SG90 servo. https://www.youtube.com/embed/fPrPRZlGdvA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=247 2026-08-26 https://robojax.com/images/video_thumbs/231_T2HMJiy9b_I.jpg Control Servo motor with a Push Button: Move Servo to ONE direction SPB-2 - RJT247 Toggle a servo motor between two angles with a push button on Arduino. Customize min/max angles and speed. Wiring and code explained for SG90 or MG996R. https://www.youtube.com/embed/T2HMJiy9b_I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=248 2026-08-26 https://robojax.com/images/video_thumbs/232_58Qqh60FrMU.jpg Control Servo motor with a Push Button: Move Servo Keep push button pressed SPB-3 - RJT248 Control a servo motor with a push button on Arduino: press and hold to move the servo from 0° to 180° or set custom angles. Wiring and code included. https://www.youtube.com/embed/58Qqh60FrMU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=249 2026-08-26 https://robojax.com/images/video_thumbs/233_6P21wG7N6t4.jpg Controlling 32 Servo Using PCA9685 and Arduino: V3 - RJT249 Control 32 servo motors with two PCA9685 modules and an Arduino. Move all servos together, add a push button to toggle them on/off, and see wiring and code. https://www.youtube.com/embed/6P21wG7N6t4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=250 2026-08-26 https://robojax.com/images/video_thumbs/234_VCM6KMMvBfE.jpg Fading 1 or more LEDs with ESP32 and Arduino IDE and calculating resistor for LED - RJT250 Fade two or more LEDs with an ESP32 using the Arduino IDE. Control brightness smoothly with PWM for your lighting projects. https://www.youtube.com/embed/VCM6KMMvBfE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=251 2026-08-26 https://robojax.com/images/video_thumbs/235_cDbd0ASkMog.jpg How to control Servo Motor using ESP32 with Arduino ESP32 Servo library - RJT251 Control a servo motor with ESP32 using the ESP-SERV1 library. Move from 0° to 180° or set custom positions in Arduino IDE. https://www.youtube.com/embed/cDbd0ASkMog?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=252 2026-08-26 https://robojax.com/images/video_thumbs/236_r-uLfILKqyY.jpg Control Servo Motor with ESP32 and Potentiometer - RJT252 Control a servo motor's position from 0° to 180° using a potentiometer and ESP32. Set custom angles with this easy wiring and code guide for Arduino IDE. https://www.youtube.com/embed/r-uLfILKqyY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=253 2026-08-26 https://robojax.com/images/video_thumbs/237_KUqR3ZLX5Ks.jpg Control More than one servo using ESP32 Arduino - RJT253 Control multiple servo motors with an ESP32, moving them from 0° to 180° or setting custom positions using the ESP-SERV3 library in Arduino IDE. https://www.youtube.com/embed/KUqR3ZLX5Ks?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=254 2026-08-26 https://robojax.com/images/video_thumbs/238_2JTMqURJTwg.jpg Controlling 2 DC Motors using ESP32 and L298N Motor driver - RJT254 Control DC motor speed and direction with an ESP32 and L298N module. Wire the H-bridge, use PWM signals, and run Arduino code to adjust motor speed. https://www.youtube.com/embed/2JTMqURJTwg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=255 2026-08-26 https://robojax.com/images/video_thumbs/239_Olq8NXgNySA.jpg How to control DC motors using ESP32 and L298N over WiFi RJT225 Control two DC motors over Wi-Fi with an ESP32 and L298N module. Build a web interface to start, stop, change speed, and reverse direction of each motor independently. https://www.youtube.com/embed/Olq8NXgNySA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=256 2026-08-26 https://robojax.com/images/video_thumbs/240_GC0gRdBpylw.jpg Control Servo with ESP32 over WiFi : Move-To-Angle SESP-WiFi-1 - RJT256 Control a servo motor's angle from 0° to 180° using ESP32 over Wi-Fi. Set custom positions from a desktop or mobile browser with Arduino IDE. https://www.youtube.com/embed/GC0gRdBpylw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=257 2026-08-26 https://robojax.com/images/video_thumbs/241_j5Op02E9Fy0.jpg Control Servo motor using ESP32 over WiFi SESP-WiFi-2 : Push move and return - RJT257 Control a servo motor from 0° to 180° using ESP32 over Wi-Fi. Set your own positions and return back via desktop or mobile browser with Arduino IDE library. https://www.youtube.com/embed/j5Op02E9Fy0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=258 2026-08-26 https://robojax.com/images/video_thumbs/242_EaoB6lfnS7g.jpg How to control an Actuator using Arduino - RJT258 Control an actuator with an Arduino and two push buttons using two relays. Push and pull any actuator with this simple wiring and code guide. https://www.youtube.com/embed/EaoB6lfnS7g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=259 2026-08-26 https://robojax.com/images/video_thumbs/243_5TlEgfFDrzI.jpg ESP-SERV-BT-1: Control Servo with ESP32 and Bluetooth on Mobile phone Move to any angle - RJT259 Control a servo motor's position from 0° to 180° using an ESP32 and Bluetooth. Three methods to set any angle wirelessly. https://www.youtube.com/embed/5TlEgfFDrzI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=260 2026-08-26 https://robojax.com/images/video_thumbs/244_-_eomicMTSo.jpg ESP-SERV-BT-2: Control Servo with ESP32 with Bluetooth of mobile device: Push-Return - RJT260 Control a servo motor with an ESP32 via Bluetooth. Move from 0° to 180° or set custom positions using the ESP32 Arduino IDE library. https://www.youtube.com/embed/-_eomicMTSo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=261 2026-08-26 https://robojax.com/images/video_thumbs/245_FOz9u_R5eG4.jpg ESP32-SERV-BT-4: Control 1 or more Servo Motors ONE ways using ESP32 Bluetooth mobile phone - RJT261 Control up to 4 servo motors wirelessly with an ESP32 and Bluetooth from a mobile device. Configure pins, angles, and steps via Arduino code. https://www.youtube.com/embed/FOz9u_R5eG4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=262 2026-08-26 https://robojax.com/images/video_thumbs/246_kZlTMNqXzo4.jpg How to use XH-W3001 AC digital Thermostat Temperature control - RJT262 Use the XH-W3001 AC digital thermostat to control heaters or coolers with AC or DC loads. Set temperature, read LLL/HHH probe errors, and configure for 120V or 220V. https://www.youtube.com/embed/kZlTMNqXzo4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=263 2026-08-26 https://robojax.com/images/video_thumbs/247_6tBEfuPCQq4.jpg How to use AC 80-260V 100A PZEM-061 Active Power Meter - RJT263 Measure AC active and reactive power with the PZEM-061 meter (80-260V, 100A). Wire the CT and voltage inputs, read voltage, current, power, and energy on the LCD, and test reactive effects with a capacitor. https://www.youtube.com/embed/6tBEfuPCQq4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=264 2026-08-26 https://robojax.com/images/video_thumbs/248_39e4V0-GCgo.jpg ESP32-SERV-BT-3: Control 1 or more servo Motors ESP32 Bluetooth using mobile device - RJT264 Control one or more servo motors with an ESP32 via Bluetooth from a mobile device. Move servos from 0° to 180° and back, or set custom values using Arduino IDE. https://www.youtube.com/embed/39e4V0-GCgo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=265 2026-08-26 https://robojax.com/images/video_thumbs/249_8sUijpGh8yM.jpg How to use breadboard and how to use it? - RJT265 Use an 830-point, 400-point, or 170-point mini breadboard to connect resistors in series and parallel. See how to wire components on a breadboard for your Arduino or electronics projects. https://www.youtube.com/embed/8sUijpGh8yM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=266 2026-08-26 https://robojax.com/images/video_thumbs/250_Y1gwOkPtqCg.jpg Multi-function DC/AC 5V - 24V Forward Reverse Motor Controller Timer I053A02 - RJT266 Control DC/AC motors with the IO53A02 board: set forward, reverse, and stop timers from 5V to 24V. Program T1, T2, T3 for precise motor control. https://www.youtube.com/embed/Y1gwOkPtqCg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=267 2026-08-26 https://robojax.com/images/video_thumbs/251_USmvNrvr0nU.jpg How to use Deek-Robot DTC1200 Digital Temperature Controller Thermostat - RJT267 Use the DEK-Robot DTC1200 digital temperature controller thermostat to manage temperature settings for your projects. https://www.youtube.com/embed/USmvNrvr0nU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=268 2026-08-26 https://robojax.com/images/video_thumbs/252_JFdXB8Za5Os.jpg Controlling 32 Servo motors with PCA9685 and ESP32 - V4 - RJT268 Control up to 32 servo motors with an ESP32 and two PCA9685 modules. Wire I2C, set PWM frequency, and run code to move servos from 0 to 180 degrees. https://www.youtube.com/embed/JFdXB8Za5Os?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=269 2026-08-26 https://robojax.com/images/video_thumbs/249_8sUijpGh8yM.jpg How to use breadboard and how to use it? - RJT265 Fade or dim LED lights using an ESP32 in this hands-on tutorial. Learn to control brightness with PWM for your electronics projects. https://www.youtube.com/embed/8sUijpGh8yM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=270 2026-08-26 https://robojax.com/images/video_thumbs/253_wdgWdxV60dg.jpg ESP8266 Project: control AC bulb or load using Relay with NodeMCU and D1 Mini over WiFi - RJT270 Control an AC bulb or load over Wi-Fi using a NodeMCU ESP8266 and a relay. Step-by-step guide with Arduino code for remote switching. https://www.youtube.com/embed/wdgWdxV60dg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=271 2026-08-26 https://robojax.com/images/video_thumbs/254_QjbxWnBdcbQ.jpg E271 ESP32 Project: How to control AC bulb or load using Relay over WiFi - RJT271 Control an AC bulb or load with an ESP32 over Wi-Fi using a relay module. Wire the circuit, set up Arduino IDE, and run a web server to toggle devices from any browser. https://www.youtube.com/embed/QjbxWnBdcbQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=272 2026-08-26 https://robojax.com/images/video_thumbs/255_F7mK587OQgI.jpg ESP8266 Project: control 2 AC bulb or load using 2 Relay with NodeMCU, D1 Mini over WiFi - RJT272 Control two AC bulbs or loads over Wi-Fi using an ESP8266 NodeMCU or D1 Mini with two relays. Simple Arduino code for remote switching from any device. https://www.youtube.com/embed/F7mK587OQgI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=273 2026-08-26 https://robojax.com/images/video_thumbs/256_1zXlV7vmMMg.jpg ESP32 Project: How to control 2 AC bulb or load using 2 Relay over WiFi - RJT273 Control two AC bulbs or loads over Wi-Fi with an ESP32 and two relays using Arduino code. Operate from a computer, tablet, or phone. https://www.youtube.com/embed/1zXlV7vmMMg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=274 2026-08-26 https://robojax.com/images/video_thumbs/257_Zm8Xor_vYF4.jpg Using MAX6675 Thermocouple with ESP32 Bluetooth - RJT274 Measure temperature with a MAX6675 thermocouple sensor and ESP32, then read it on your mobile phone via Bluetooth. Step-by-step wiring and code. https://www.youtube.com/embed/Zm8Xor_vYF4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=275 2026-08-26 https://robojax.com/images/video_thumbs/257_Zm8Xor_vYF4.jpg Using MAX6675 Thermocouple with ESP32 Bluetooth - RJT274 Measure temperature with a K-type thermocouple and MAX6675 on ESP32 in Arduino IDE. Read serial monitor output and take action based on readings. https://www.youtube.com/embed/Zm8Xor_vYF4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=276 2026-08-26 https://robojax.com/images/video_thumbs/257_Zm8Xor_vYF4.jpg Using MAX6675 Thermocouple with ESP32 Bluetooth - RJT274 Measure temperature with two or more K-type thermocouples using MAX6675 and ESP32. Read values on serial monitor via Arduino IDE. https://www.youtube.com/embed/Zm8Xor_vYF4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=277 2026-08-26 https://robojax.com/images/video_thumbs/115_akQoGNUzhHI.jpg Control Speed and Direction DC motor using L293B L293D motor with Aarduino PWM RJT118 Control four DC motors with an L293D motor shield for Arduino. Learn wiring, library installation, and code to drive motors from 4.5V to 36V at 600mA per channel. https://www.youtube.com/embed/akQoGNUzhHI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=278 2026-08-26 https://robojax.com/images/video_thumbs/258_zyCdIlPsIXU.jpg IoT Project: Use NodeMCU ESP8266 or D1 Mini to control DC Motor over WiFi with Relay - RJT278 Control a DC motor over Wi-Fi with a NodeMCU or D1 Mini and a relay. Use Arduino code to operate the motor from a computer, tablet, or phone. https://www.youtube.com/embed/zyCdIlPsIXU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=279 2026-08-26 https://robojax.com/images/video_thumbs/259_nNBUWt-zmOM.jpg IoT ESP32: Control DC Motor over WiFi using 2 channel relay - RJT279 Control a DC motor over Wi-Fi with an ESP32 and 2-channel relay. Grab the Arduino code to run this IoT project from your computer, tablet, or phone. https://www.youtube.com/embed/nNBUWt-zmOM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=280 2026-08-26 https://robojax.com/images/video_thumbs/260_a8yJoeFsKWw.jpg ESP8266 Project: control 4 AC bulb or load using 4 Relay with NodeMCU , D1 Mini over WiFi - RJT280 Control four AC bulbs or loads with an ESP8266 NodeMCU or D1 Mini over Wi-Fi using four relays. Use this Arduino code to switch loads from a computer, tablet, or phone. https://www.youtube.com/embed/a8yJoeFsKWw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=281 2026-08-26 https://robojax.com/images/video_thumbs/261_LDLPUpU64J4.jpg Hack: Increasing the time and adding reset switch to 555 Relay Timer Modify a NE555 12V relay timer module to increase its timing range and add a reset switch, allowing reset without restarting the module. Step-by-step guide for hobbyists. https://www.youtube.com/embed/LDLPUpU64J4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=282 2026-08-26 https://robojax.com/images/video_thumbs/262_Mbb2xa1WcRM.jpg Learn Arduino in 30 Minutes: Examples and projects - RJT282 Learn Arduino in 30 minutes with this crash course. Understand the for loop, write efficient code, and start building projects with step-by-step guidance. https://www.youtube.com/embed/Mbb2xa1WcRM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=283 2026-08-26 https://robojax.com/images/video_thumbs/262_Mbb2xa1WcRM.jpg Learn Arduino in 30 Minutes: Examples and projects - RJT282 Control an AC bulb with a relay using Arduino in this 30-minute crash course. Get wiring diagrams, code, and step-by-step guidance to build your first relay project. https://www.youtube.com/embed/Mbb2xa1WcRM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=284 2026-08-26 https://robojax.com/images/video_thumbs/262_Mbb2xa1WcRM.jpg Learn Arduino in 30 Minutes: Examples and projects - RJT282 Learn Arduino in 30 minutes with RoboJax. Control a servo motor, wire it, and program it step by step. Get code and diagrams for beginners. https://www.youtube.com/embed/Mbb2xa1WcRM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=285 2026-08-26 https://robojax.com/images/video_thumbs/262_Mbb2xa1WcRM.jpg Learn Arduino in 30 Minutes: Examples and projects - RJT282 Learn Arduino in 30 minutes with this crash course. Build a touch sensor project, wire it, and program it step by step. Perfect for beginners. https://www.youtube.com/embed/Mbb2xa1WcRM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=286 2026-08-26 https://robojax.com/images/video_thumbs/263_3C33DpcSwIw.jpg Measuring 5A-30A AC and DC current using Allegro ACS712 with Robojax Library- RJT286 Measure 5A to 30A AC and DC current with the ACS712 sensor and Arduino using the Robojax library. Wiring, code, and demonstrations for 5A, 20A, and 30A modules. https://www.youtube.com/embed/3C33DpcSwIw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=287 2026-08-26 https://robojax.com/images/video_thumbs/264_o6j_Qy3JTvU.jpg ESP32 Project: How to control 4 AC bulb or load using 4 Relay over WiFi - RJT287 Control four AC bulbs or loads over Wi-Fi with an ESP32 and four relays using Arduino code. Operate from a computer, tablet, or mobile phone. https://www.youtube.com/embed/o6j_Qy3JTvU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=289 2026-08-26 https://robojax.com/images/video_thumbs/266_5DjO8Fo_AtE.jpg Measure Tilt Angle using SCA60C angle sensor - RJT289 Measure tilt angle with the SCA60C sensor and Arduino. This code helps you read angle values for robotic arms or elements, and can trigger a buzzer or relay at a set angle. https://www.youtube.com/embed/5DjO8Fo_AtE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=290 2026-08-26 https://robojax.com/images/video_thumbs/266_5DjO8Fo_AtE.jpg Measure Tilt Angle using SCA60C angle sensor - RJT289 Measure tilt angle from 0 to 180 degrees with the SCA60C sensor and Arduino. Wire it, read analog voltage, calibrate with angleCompensate, and trigger alarms via D1/D2 outputs. https://www.youtube.com/embed/5DjO8Fo_AtE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=291 2026-08-26 https://robojax.com/images/video_thumbs/170_cYTICj4DWYc.jpg E181 Control Position and Speed of Stepper motor with L298N module using Arduino RJT181 Understand the difference between key shaft and milling shaft in stepper and DC motors. Compare their shapes, uses, and how they affect motor coupling. https://www.youtube.com/embed/cYTICj4DWYc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=292 2026-08-26 https://robojax.com/images/video_thumbs/267_cFDSqiEIunw.jpg Using Melexis MLX90614 Non-Contact Infrared Thermometer with Arduino - RJT292 Measure surface temperature with the Melexis MLX90614 infrared thermometer and Arduino. Wiring, code, and live demos with a heat gun and heater. https://www.youtube.com/embed/cFDSqiEIunw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=293 2026-08-26 https://robojax.com/images/video_thumbs/267_cFDSqiEIunw.jpg Using Melexis MLX90614 Non-Contact Infrared Thermometer with Arduino - RJT292 Measure surface temperature with three or more MLX90614 infrared thermometers on Arduino. Review datasheet, wiring, and code for multiple I2C addresses. https://www.youtube.com/embed/cFDSqiEIunw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=294 2026-08-26 https://robojax.com/images/video_thumbs/268_sB6EULTix2k.jpg Measuring 50A to 200A using Allegro ACS770 Current Sensor with Robojax Arduino Library - RJT294 Measure 50A to 200A AC and DC current using ACS770 Hall effect sensors with RoboJax library. See wiring and code for 1A to 50A readings. https://www.youtube.com/embed/sB6EULTix2k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=295 2026-08-26 https://robojax.com/images/video_thumbs/268_sB6EULTix2k.jpg Measuring 50A to 200A using Allegro ACS770 Current Sensor with Robojax Arduino Library - RJT294 Measure AC and DC current with three Allegro ACS770 sensors on Arduino. Wire VOUT to A0-A2, read values via RoboJax library, and display on serial monitor. https://www.youtube.com/embed/sB6EULTix2k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=296 2026-08-26 https://robojax.com/images/video_thumbs/269_EKT5RXSdgPg.jpg How to use XH-M603 Battery Charger Controller - Lead Acid only, not Lithium - RJT296 Use the XH-M603 battery protection controller to charge lead-acid batteries from a charger or solar panel, preventing overcharging with adjustable voltage thresholds. https://www.youtube.com/embed/EKT5RXSdgPg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=298 2026-08-26 https://robojax.com/images/video_thumbs/270_QNENyu97w2A.jpg How to use a 3S 40A lithium BMS battery charger - short video Use a 3S 40A lithium BMS to safely charge batteries. Wiring, protection limits, and tests for overcharge, over-discharge, and short circuit. https://www.youtube.com/embed/QNENyu97w2A?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=299 2026-08-26 https://robojax.com/images/video_thumbs/271_X9WqPZ42UOA.jpg Home Automation: How to use 0.1s-999 hours Digital Time Delay Relay Dual LED Display - RJT299 Use a digital time delay relay with dual LED display, adjustable from 0 seconds to 999 hours for precise timing control. https://www.youtube.com/embed/X9WqPZ42UOA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=300 2026-08-26 https://robojax.com/images/video_thumbs/272_0glBk917HPg.jpg Lesson 83: How to use 2 or more VL53L0X ToF Laser Distance Sensor - RJT300 Measure distance with two or more VL53L0X laser distance meters and Arduino. See how to use multiple sensors in one project. https://www.youtube.com/embed/0glBk917HPg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=301 2026-08-26 https://robojax.com/images/video_thumbs/272_0glBk917HPg.jpg Lesson 83: How to use 2 or more VL53L0X ToF Laser Distance Sensor - RJT300 Measure distance with four or more VL53L0X laser distance meters using Arduino. Learn how to use multiple VL53L0X modules in this tutorial. https://www.youtube.com/embed/0glBk917HPg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=302 2026-08-26 https://robojax.com/images/video_thumbs/273_iKUwu220UFQ.jpg Measure Light Lux or Intensity with BH1750L Light Sensor Module - RJT302 Measure light lux with the BH1750 sensor and Arduino. Learn to wire the I2C module and change its address for accurate readings. https://www.youtube.com/embed/iKUwu220UFQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=305 2026-08-26 https://robojax.com/images/video_thumbs/275_t8xwrVj2aFs.jpg Built Voltage Sensor with two resistors for Arduino to measure any DC voltage - RJT305 Measure any DC voltage with an Arduino using a voltage divider and optional 5.1V Zener diode. Learn the circuit and code to safely read voltages beyond 5V. https://www.youtube.com/embed/t8xwrVj2aFs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=307 2026-08-26 https://robojax.com/images/video_thumbs/276_9v8XDdReeZw.jpg Home Automation XY-TR01 Temperature and Humidity Relay Thermostat - RJT307 Use the XY-TR01 temperature and humidity controller as a heater or cooler thermostat with temperature or humidity control, with step-by-step examples. https://www.youtube.com/embed/9v8XDdReeZw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=308 2026-08-26 https://robojax.com/images/video_thumbs/277_csf_G1pi0ps.jpg Control Speed of Stepper Motor using L298N with Push Button Switches STLPB-01- RJT308 Control stepper motor speed with an L298N module and Arduino using three push-button switches. Adjust speed easily with this hands-on tutorial. https://www.youtube.com/embed/csf_G1pi0ps?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=310 2026-08-26 https://robojax.com/images/video_thumbs/279_sbQ3D1_x_tg.jpg How to use 5x4 20 keys keypad with Arduino detect String - RJT309 Detect strings from a 5x4 20-key keypad with Arduino. Code handles multi-character keys, making it easy to read any length key value. https://www.youtube.com/embed/sbQ3D1_x_tg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=312 2026-08-26 https://robojax.com/images/video_thumbs/280_S5IBc_epa1A.jpg How to use LM35 To Measure Temperature in Celsius Fahrenheit and Kelvin Measure temperature with the LM35 sensor on Arduino, displaying Celsius, Fahrenheit, and Kelvin on the serial monitor. Includes wiring and code. https://www.youtube.com/embed/S5IBc_epa1A?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=313 2026-08-26 https://robojax.com/images/video_thumbs/281_9jwCc7uPGoc.jpg Measure up to 500A DC Current with Shunt Resistor using Arduino - RJT313 Measure DC current up to 500A with a shunt resistor and Arduino. See wiring and code for accurate current sensing using the ARDCC-01 module. https://www.youtube.com/embed/9jwCc7uPGoc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=314 2026-08-26 https://robojax.com/images/video_thumbs/282_xHe9RRQWMBM.jpg Measure up to 500A DC Current with Shunt resistor and Arduino - RJT314 Measure DC current up to 500A with a shunt using Arduino and LCD1602. Wire the shunt, program the Arduino, and display current readings on the LCD. https://www.youtube.com/embed/xHe9RRQWMBM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=315 2026-08-26 https://robojax.com/images/video_thumbs/283_XpMtQVCMIRA.jpg Display Temperature on LCD1602 using LM35 Temperature Sensor with Arduino - RJT315 Display LM35 temperature on an LCD1602 in Celsius, Fahrenheit, and Kelvin. Wire LM35 to Arduino A0 and LCD via I2C, then run the code to cycle readings. https://www.youtube.com/embed/XpMtQVCMIRA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=316 2026-08-26 https://robojax.com/images/video_thumbs/284_xSI9k5BK-jU.jpg Review of a 400W DC step-up boost converter, input 8.5V-50V, output 10V-60V Review a 400W DC step-up boost converter with 8.5V-50V input and 10V-60V output. Test current limits at 9V-36V inputs and see thermal performance. https://www.youtube.com/embed/xSI9k5BK-jU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=317 2026-08-26 https://robojax.com/images/video_thumbs/285_dVh77wT-4Ao.jpg MAX6675 with K-Type Thermocouple Control Relay Thermostat - RJT317 Use MAX6675 with K-Type thermocouple to control a relay as a thermostat. Set temperature in C, F, or K for heater or cooler control. https://www.youtube.com/embed/dVh77wT-4Ao?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=318 2026-08-26 https://robojax.com/images/video_thumbs/286_M6IFUdVoDT4.jpg Measure up to 500A DC Current with Shunt and Arduino- TM1637 Display - RJT318 Measure DC current up to 500A using a shunt resistor and Arduino, with readings shown on a TM1637 4-digit LED display. https://www.youtube.com/embed/M6IFUdVoDT4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=319 2026-08-26 https://robojax.com/images/video_thumbs/287_El5Dd51HBG8.jpg Control DC Motor 4V to 60V 10A using XY-GMOS MOSFET Switch module and Arduino - RJT319 Review the XY-GMOS 10A MOSFET motor driver and high-low trigger switch module for controlling DC motors with PWM or as a high/low trigger switch. https://www.youtube.com/embed/El5Dd51HBG8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=320 2026-08-26 https://robojax.com/images/video_thumbs/288_1XrS0oybNls.jpg Review of IC Station XH-M407 8A DC Buck Converter 1.25V-36V - RJT320 Review the IC Station XH-M407 8A DC buck converter, covering 1.25V–36V output. See component details and tests with various input and output voltages. https://www.youtube.com/embed/1XrS0oybNls?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=321 2026-08-26 https://robojax.com/images/video_thumbs/289_emLLK32S3vE.jpg DC CC 9A 280W Step Down Buck Converter 7-40V To 1.2-35V XL4016 Module - RJT321 Test the 9A 280W DC-DC step-down buck converter with XL4016 module, converting 7-40V to 1.2-35V under various loads. https://www.youtube.com/embed/emLLK32S3vE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=322 2026-08-26 https://robojax.com/images/video_thumbs/290_qh1LlCg6yXw.jpg Build up to 500A DC Arduino Energy Meter with LCD and Serial Monitor- RJT322 Measure DC energy with Arduino using a shunt resistor. RoboJax library supports any DC voltage and current from 1A to 1000A. Download library and start measuring. https://www.youtube.com/embed/qh1LlCg6yXw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=325 2026-08-26 https://robojax.com/images/video_thumbs/292_Lt-Zhm_XY38.jpg Display distance from VL53L1X Distance Sensor on Arduino LCD - RJT325 Display distance from a VL53L1X 4000mm ToF laser sensor on an Arduino LCD1602 or LCD2004 with I2C. Measure range and show readings. https://www.youtube.com/embed/Lt-Zhm_XY38?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=327 2026-08-26 https://robojax.com/images/video_thumbs/294_a6LLbJtnPPA.jpg Review of DC 10-50V 60A 3000W Motor Speed Control PWM Controller module XY-1260- RJT327 Control DC motor speed with XY-1250 and XY-1260 PWM controllers, rated 10-50A, 60A, 3000W. See tests and Arduino control. https://www.youtube.com/embed/a6LLbJtnPPA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=328 2026-08-26 https://robojax.com/images/video_thumbs/295__iO2L4P_irw.jpg Non-Contact Thermometer Infrared Sensor MLX90614 with LCD - RJT328 Display temperature in °C, °F, and K on an LCD1602 with an Arduino using the Melexis MLX90614 infrared thermometer. Includes code for LCD2004. https://www.youtube.com/embed/_iO2L4P_irw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=329 2026-08-26 https://robojax.com/images/video_thumbs/295__iO2L4P_irw.jpg Non-Contact Thermometer Infrared Sensor MLX90614 with LCD - RJT328 Display temperature in °C, °F, and K from the Melexis MLX90614 infrared thermometer on an Arduino LCD2004 with I2C module. Includes code for LCD1602. https://www.youtube.com/embed/_iO2L4P_irw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=330 2026-08-26 https://robojax.com/images/video_thumbs/296_HpsvNIAtjm4.jpg Using Non-Contact MLX90614 Temperature Sensor with EP32 Over Bluetooth - RJT330 Display MLX90614 infrared non-contact temperature readings on a mobile phone over Bluetooth using an ESP32 Arduino board. Measure temperature without contact. https://www.youtube.com/embed/HpsvNIAtjm4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=331 2026-08-26 https://robojax.com/images/video_thumbs/297_OuD7K_f7hDg.jpg Using Non-Contact MLX90614 Temperature Sensor with NodeMCU D1 Mini over WiFi -RJT331 Measure non-contact temperature in °C, °F, and K with the Melexis MLX90614 and NodeMCU D1 Mini over Wi-Fi. Display readings on a web interface. https://www.youtube.com/embed/OuD7K_f7hDg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=332 2026-08-26 https://robojax.com/images/video_thumbs/297_OuD7K_f7hDg.jpg Using Non-Contact MLX90614 Temperature Sensor with NodeMCU D1 Mini over WiFi -RJT331 Measure non-contact temperature in °C, °F, and K with the MLX90614 and NodeMCU D1 Mini over Wi-Fi using AJAX. https://www.youtube.com/embed/OuD7K_f7hDg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=333 2026-08-26 https://robojax.com/images/video_thumbs/298_Mmxw7T29Z6k.jpg Review of YB5140 50A DC Current Meter with 75mV Shunt resistor - RJT333 Measure 1A to 50A DC with the YB5145B current meter and 75mV shunt. See inside, test accuracy, and calibrate for precise readings. https://www.youtube.com/embed/Mmxw7T29Z6k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=334 2026-08-26 https://robojax.com/images/video_thumbs/299_sS5apP9vqak.jpg MAX6675 Thermocoupler Temperature over WiFi with ESP8266 NodeMCU D1 Mini - RJT334 Measure temperature with a MAX6675 K-type thermocouple and ESP8266 NodeMCU D1 Mini, displaying readings over Wi-Fi on desktop, tablet, or phone. Includes Ajax and non-Ajax code options. https://www.youtube.com/embed/sS5apP9vqak?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=335 2026-08-26 https://robojax.com/images/video_thumbs/300_H0pQQxIUk9U.jpg Review and calibration of YB5145B 10A DC Current Meter - RJT335 Review the YB5145B 10A DC current meter: inspect its components, measure current, and calibrate it for accurate readings. https://www.youtube.com/embed/H0pQQxIUk9U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=336 2026-08-26 https://robojax.com/images/video_thumbs/301_rdNCIyL6OA8.jpg Using Sharp IR GP2Y0A51SK0F Distance Sensor with Arduino (2cm to 15cm) - RJT336 Measure distances from 2 cm to 15 cm with the Sharp GP2Y0A51SK0F IR sensor and Arduino. Code for multiple sensors included. https://www.youtube.com/embed/rdNCIyL6OA8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=337 2026-08-26 https://robojax.com/images/video_thumbs/302_jN86PSAHMbw.jpg Non-Contact Long Range MLX90614-DCI Temperature Sensor with Arduino - RJT337 Measure temperature from 20 to 50 cm with the MLX90614-DCI infrared sensor and Arduino. Use 3.3V power and code for medical accuracy. https://www.youtube.com/embed/jN86PSAHMbw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=338 2026-08-26 https://robojax.com/images/video_thumbs/303_G9uHVcITHf8.jpg How to use MOSFET Button IRF540 to control 5A to 20A DC Motor or LED light strip - RJT338 Control 5A to 20A DC motors or LED strips with the YYNMOS-4 4-channel MOSFET module and Arduino. Wire it, use PWM, and adjust speed or brightness. https://www.youtube.com/embed/G9uHVcITHf8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=339 2026-08-26 https://robojax.com/images/video_thumbs/304_DOhTvjcsLDg.jpg Using Sharp 15cm Distance Sensor 0A51SK with Arduino LCD1602 and LCD2004 - RJT339 Measure distances from 2cm to 15cm using the Sharp GP2Y0A51SK0F IR sensor with Arduino. Display results in cm or inch on an I2C LCD1602 or LCD2004. Wiring and code included. https://www.youtube.com/embed/DOhTvjcsLDg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=340 2026-08-26 https://robojax.com/images/video_thumbs/305_2XHUeucA-eU.jpg Review of XY-SEP4 4A Buck-Boost Converter Meter Charger with Display Review the XY-SEP4 4A buck-boost converter with display for voltage, current, and power. Covers 5-30V input, 0.5-30V output, battery charging, and protection features. https://www.youtube.com/embed/2XHUeucA-eU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=341 2026-08-26 https://robojax.com/images/video_thumbs/306_z-s8UvCWGxY.jpg Winson WCS1800 WCS2750 WCS1500 Hall Effect Current Sensor with Robojax Arduino Library - RJT341 Measure AC and DC current with the Winson WCS1800 Hall-effect sensor and Arduino. Wire the sensor, install the Robojax library, and read current values on the Serial Monitor. https://www.youtube.com/embed/z-s8UvCWGxY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=342 2026-08-26 https://robojax.com/images/video_thumbs/306_z-s8UvCWGxY.jpg Winson WCS1800 WCS2750 WCS1500 Hall Effect Current Sensor with Robojax Arduino Library - RJT341 Measure current with two Winson WCS1800 Hall-effect sensors on Arduino using the Robojax_WCS library. Independent calibration, readings, and scaling to multiple sensors. https://www.youtube.com/embed/z-s8UvCWGxY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=343 2026-08-26 https://robojax.com/images/video_thumbs/307_-pg7jbkaB6A.jpg Using Winson WCS Current Sensors with LCD and Arduino - RJT343 Display real-time current from Winson WCS sensors (WCS1800, WCS1500) on LCD1602/LCD2004 I2C with Arduino using Robojax_WCS library. Includes wiring and calibration. https://www.youtube.com/embed/-pg7jbkaB6A?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=344 2026-08-26 https://robojax.com/images/video_thumbs/308_vs7Nw107AOo.jpg Overcurrent Protection OVP with Winson WCS Current Sensors and Arduino - RJT344 Measure DC current with Winson WCS sensors and Arduino LCD. Set a threshold to trigger a relay for overcurrent protection using the Robojax WCS Library. https://www.youtube.com/embed/vs7Nw107AOo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=345 2026-08-26 https://robojax.com/images/video_thumbs/308_vs7Nw107AOo.jpg Overcurrent Protection OVP with Winson WCS Current Sensors and Arduino - RJT344 Measure DC current with Winson WCS sensors and an Arduino, then trigger a relay for overcurrent protection when current exceeds a set threshold. Works with all WCS models using the Robojax WCS Library. https://www.youtube.com/embed/vs7Nw107AOo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=346 2026-08-26 https://robojax.com/images/video_thumbs/309_vQIsc8-Uoio.jpg How to use TP5100 2A 8.4/4.2V 1S and 2S Lithium Battery Charger DIY - RJT346 Review the TP5100 2A lithium battery charger module for 1S (4.2V) and 2S (8.4V) charging. See wiring, 1S/2S selection, thermal tests, short-circuit and reverse polarity results. https://www.youtube.com/embed/vQIsc8-Uoio?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=347 2026-08-26 https://robojax.com/images/video_thumbs/310_Lk__xTxLlY0.jpg Lithium Battery Protection Using DW01 and TC4056: Tested and Explained Build a lithium battery protection circuit with TC4056 charger and DW01 IC. Tested for overcharge, over-discharge, overcurrent, and short-circuit safety. https://www.youtube.com/embed/Lk__xTxLlY0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=348 2026-08-26 https://robojax.com/images/video_thumbs/311_4-SujloLcXU.jpg ZK-SJVA-4X 35W Step-Up/Down Constant Current Converter Power Supply and Charger Test the ZK-SJVA-4X 35W step-up/down constant-current converter: set current limit, charge batteries, and measure efficiency across input voltages 6V-30V and outputs 3.3V-30V. https://www.youtube.com/embed/4-SujloLcXU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=349 2026-08-26 https://robojax.com/images/video_thumbs/312_AGGkljZIk8k.jpg Review of DC 1500W 30A boost converter, 10V-60V to 12V-90V module Review the DC 1500W 30A boost converter, 10V-60V input to 12V-90V output. See wiring, tests, and specs for high-power voltage boosting. https://www.youtube.com/embed/AGGkljZIk8k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=350 2026-08-26 https://robojax.com/images/video_thumbs/313_DEAkpn0KmPA.jpg Review of WZ5005E 5A 250W LCD buck converter with CC, 10 preset memory Review the WZ5005E 5A 250W LCD buck converter: test input/output voltages, protections, battery charging, and ripple. See thermal imaging and component details. https://www.youtube.com/embed/DEAkpn0KmPA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=351 2026-08-26 https://robojax.com/images/video_thumbs/314_4J3FQ8jVokY.jpg How to use the XYS3580 5A step-down/step-up 35V constant current converter Use the XYS3580 buck-boost converter to set voltage, current, and power. Tested as step-down/up with 1A to 5A, short-circuit protection, and lithium battery charging. https://www.youtube.com/embed/4J3FQ8jVokY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=352 2026-08-26 https://robojax.com/images/video_thumbs/315_QB49Rmc96Ho.jpg How to control multiple Servo motors using one potentiometer with Arduino - RJT352 Control multiple servo motors with one potentiometer using Arduino. See wiring, code explanation, and demonstration in this hands-on tutorial. https://www.youtube.com/embed/QB49Rmc96Ho?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=353 2026-08-26 https://robojax.com/images/video_thumbs/316_1VNqRqV0kek.jpg Review of ZK-5JX 6.5-36V to 1.2-32V 5A 75W step-down converter with LCD Review the ZK-5JX step-down converter with LCD, testing voltage accuracy from 30V to 1.5V, current settings, and ripple. See how it charges lithium-ion batteries. https://www.youtube.com/embed/1VNqRqV0kek?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=354 2026-08-26 https://robojax.com/images/video_thumbs/317_xrIiKqvm8hQ.jpg Servo Motor with Potentiometer and LCD with Arduino - RJT354 Control a servo motor's angle with a potentiometer and display it on an LCD1602 or LCD2004 via I2C using Arduino. See wiring and code for SP-LCD-1. https://www.youtube.com/embed/xrIiKqvm8hQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=355 2026-08-26 https://robojax.com/images/video_thumbs/317_xrIiKqvm8hQ.jpg Servo Motor with Potentiometer and LCD with Arduino - RJT354 Control a servo motor's angle with a potentiometer and display it on an LCD1602 or LCD2004 with I2C using Arduino, no breadboard needed. Code SP-LCD-2. https://www.youtube.com/embed/xrIiKqvm8hQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=356 2026-08-26 https://robojax.com/images/video_thumbs/318_-dUKnIXPMeA.jpg Introduction to Heltec LoRa CubeCell Development Board HTCC-AB01 - RJT356 Use the Heltec CubeCell LoRa HTCC-AB01: set up Arduino IDE, control RGB LED, test GPIO pins, and send/receive text or remote button commands between two boards. https://www.youtube.com/embed/-dUKnIXPMeA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=357 2026-08-26 https://robojax.com/images/video_thumbs/319_7x1zB3VcX1I.jpg How to use the XH-M240 18650 Lithium Battery Capacity Tester/Discharger Measure 18650 battery capacity with the XH-M240 tester/discharger. See specs, wiring, and discharge time for 3200 mAh cells. Ideal for hobbyists. https://www.youtube.com/embed/7x1zB3VcX1I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=358 2026-08-26 https://robojax.com/images/video_thumbs/320_MeWgnt0YLj8.jpg How to use up to 10 push button switch with 1 Arduino input pin ANPB-V1 - RJT358 Use up to 10 push-button switches with a single Arduino input pin using a resistor ladder. Learn wiring and code for ANPB-V1 with 1kΩ and 100kΩ resistors. https://www.youtube.com/embed/MeWgnt0YLj8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=359 2026-08-26 https://robojax.com/images/video_thumbs/321_AI-zzmSZVfw.jpg Control 10 output or relay using 10 push button switch with 1 Arduino input pin ANPB-V2 - RJT359 Control 10 output pins with 10 push buttons using only 1 Arduino input pin. Learn the ANPB-V2 resistor ladder method and wiring for accurate button detection. https://www.youtube.com/embed/AI-zzmSZVfw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=360 2026-08-26 https://robojax.com/images/video_thumbs/322_I_rRTJgONTw.jpg Review of WUZHI WZ5005 250W 5A buck converter panel with Wi-Fi app Review the WUZHI WZ5005 250W 5A buck converter panel with Wi-Fi app control. Test accuracy, ripple, and battery charging. https://www.youtube.com/embed/I_rRTJgONTw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=361 2026-08-26 https://robojax.com/images/video_thumbs/323_TUbnsNfK8Z4.jpg STC-3028 Thermostat with Heat and Humidity Fully Explained and demonstrated - RJT361 STC-3028 thermostat controls heat and humidity with SHT20 sensor, two load controllers for heater, cooler, humidifier, or dehumidifier. Wiring and settings explained. https://www.youtube.com/embed/TUbnsNfK8Z4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=362 2026-08-26 https://robojax.com/images/video_thumbs/324_gNhz-OXuw8c.jpg How to user Makerfabs ESP32 3.5" TFT Capacitive Touch with Camera - RJT362 Use Makerfabs ESP32 3.5 TFT capacitive touch display with camera for projects. Connect and program this all-in-one board with Wi-Fi and Bluetooth. https://www.youtube.com/embed/gNhz-OXuw8c?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=363 2026-08-26 https://robojax.com/images/video_thumbs/325_dd2Ek_CMBHA.jpg Review of Plasma Speaker Tesla Coil 72W - RJT363 Test a 72W Plasma Speaker Tesla Coil from eBay. See dangerous high-voltage effects and safety warnings. Review includes multiple tests. https://www.youtube.com/embed/dd2Ek_CMBHA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=364 2026-08-26 https://robojax.com/images/video_thumbs/326_tEwWsbHQA5Q.jpg Introduction to HT16K33 4 Digit LED Seven Segment Display with Arduino - RJT364 Use the HT16K33 I2C 4-digit seven-segment display with Arduino. Learn to display numbers and letters using the Rob Tillaart library. https://www.youtube.com/embed/tEwWsbHQA5Q?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=365 2026-08-26 https://robojax.com/images/video_thumbs/327_bvqfv-FrrLM.jpg Control 32 Servo over Wi-Fi using ESP32 and PCA9685 via desktop or mobile phone V5 - RJT365 Control 32 servos over Wi-Fi using ESP32 and PCA9685 modules via a web interface on desktop or mobile. Step-by-step wiring and Arduino code. https://www.youtube.com/embed/bvqfv-FrrLM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=366 2026-08-26 https://robojax.com/images/video_thumbs/328_onBqlWvFd0I.jpg Review of ELMDESK DESKA4 3500mW EleksMaker Laser Engraver - Banggood - RJT366 Review the ELMDESK DESKA4 3500mW EleksMaker laser engraver: features, build quality, and performance for hobbyist engraving projects. https://www.youtube.com/embed/onBqlWvFd0I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=367 2026-08-26 https://robojax.com/images/video_thumbs/329_XGsT-0P0gMU.jpg Digital clock using HT16K33 display and DS3231 Real-time clock module - RJT367 Build a simple digital clock using Arduino and DS3231 RTC module. Wire the DS3231, upload code, and display time on an LCD. Step-by-step guide with code. https://www.youtube.com/embed/XGsT-0P0gMU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=368 2026-08-26 https://robojax.com/images/video_thumbs/330_JUcskPLro4U.jpg Digital clock using HT16K33 display and DS1307 Real-time clock module - RJT368 Build a simple digital clock with Arduino and DS3231 RTC. Display time on a seven-segment display using HT16K33 module. Step-by-step guide. https://www.youtube.com/embed/JUcskPLro4U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=369 2026-08-26 https://robojax.com/images/video_thumbs/331_UE92hrn8Fg4.jpg Using HT16K33 4 digit seven segment display with ESP8266 NodeMCU and D1 Mini - RJT369 Use an HT16K33 4-digit seven-segment display with an ESP8266 NodeMCU or D1 Mini to build a digital clock, as shown in this video tutorial. https://www.youtube.com/embed/UE92hrn8Fg4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=370 2026-08-26 https://robojax.com/images/video_thumbs/332_a3WqCAIvTdQ.jpg Using HT16K33 4 digit seven segment display with ESP32 - RJT370 Build a digital clock with an HT16K33 4-digit seven-segment display and DS1307 RTC module using an ESP32. See code and wiring in this video tutorial. https://www.youtube.com/embed/a3WqCAIvTdQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=371 2026-08-26 https://robojax.com/images/video_thumbs/333_2DaC6oOV9oA.jpg Battery Protection DC10-90V SIN9020S OVP OCP OPV Ultimate protection with relay RJT371 Protect batteries with the SIN9020S module: measures up to 90V and 20A, uses a 40A relay for overvoltage, overcurrent, overpower, undervoltage, over time, and overcapacity protection. Set thresholds via color display. Ideal for DIY power systems. https://www.youtube.com/embed/2DaC6oOV9oA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=372 2026-08-26 https://robojax.com/images/video_thumbs/334__H9D0czQpSI.jpg Lesson 76: Using one or more VL6180X 20cm Time-of-Flight proximity sensor with Arduino - RJT372 Measure distance up to 20cm with the VL6180X time-of-flight sensor and Arduino. Wire I2C, read range in mm, and handle errors in code. https://www.youtube.com/embed/_H9D0czQpSI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=373 2026-08-26 https://robojax.com/images/video_thumbs/334__H9D0czQpSI.jpg Lesson 76: Using one or more VL6180X 20cm Time-of-Flight proximity sensor with Arduino - RJT372 Measure distance up to 20cm with two or more VL6180X time-of-flight sensors on Arduino. Wire I2C, set unique addresses, and read sensor data. https://www.youtube.com/embed/_H9D0czQpSI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=374 2026-08-26 https://robojax.com/images/video_thumbs/335_jp_fWus85Gc.jpg Full review of the ZK-12KX 160W 32V buck converter with lithium charger Review the ZK-12KX 160W 32V buck converter with lithium charger. See components, charging, load tests, efficiency, and ripple voltage measurements. https://www.youtube.com/embed/jp_fWus85Gc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=375 2026-08-26 https://robojax.com/images/video_thumbs/336_6koPHrq3qbA.jpg Review of DPH3205 5A 0-32V step-down or buck-boost converter and charger Review DPH3205 5A 0-32V buck-boost converter and charger. Set voltage, current, OVP, OCP, OPP. Tested at 5A, battery charging, ripple, efficiency. https://www.youtube.com/embed/6koPHrq3qbA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=376 2026-08-26 https://robojax.com/images/video_thumbs/337_zoDjT2_0M5g.jpg Introduction to M5Stack Core2 ESP32 2" Display Development Module - RJT376 Explore the M5Stack Core2 ESP32 display module: schematic, specs, components, Arduino IDE setup, and demo examples in this detailed video guide. https://www.youtube.com/embed/zoDjT2_0M5g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=377 2026-08-26 https://robojax.com/images/video_thumbs/338_6Js7CPe7Dwo.jpg Laser distance measurement with M5Stack Core2 ESP32 and VL53L0X with Arduino - RJT377 Measure distance in cm, mm, or inches using the VL53L0X laser sensor with M5Stack Core2 ESP32. Arduino IDE setup and wiring guide for hobbyists. https://www.youtube.com/embed/6Js7CPe7Dwo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=378 2026-08-26 https://robojax.com/images/video_thumbs/338_6Js7CPe7Dwo.jpg Laser distance measurement with M5Stack Core2 ESP32 and VL53L0X with Arduino - RJT377 Measure distance in cm, mm, or inches with M5Stack Core2 ESP32 and VL53L0X laser sensor. Advanced Arduino code includes touch switches for units and power off. https://www.youtube.com/embed/6Js7CPe7Dwo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=379 2026-08-26 https://robojax.com/images/video_thumbs/339_JXCcmZUmzy8.jpg Measure Temperature and Humidity WiFi with ESP32 DHT11 and DHT22 - RJT379 Measure temperature over Wi-Fi with ESP32 and DHT11, DHT21, or DHT22. Full wiring diagram, Arduino IDE setup, and web server code explained. https://www.youtube.com/embed/JXCcmZUmzy8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=381 2026-08-26 https://robojax.com/images/video_thumbs/341_yjzumqzJpM8.jpg 12V Bluetooth Relay to control AC or DC load using mobile Phone - RJT381 Control AC or DC loads with a 12V Bluetooth relay module using a mobile phone. Learn wiring, app setup, and current consumption in this hands-on guide. https://www.youtube.com/embed/yjzumqzJpM8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=382 2026-08-26 https://robojax.com/images/video_thumbs/342_MuvXD0vIVWM.jpg AT&T DECT 6.0 Expandable Cordless Phone with Answering System CL82407 Smart Call Blocker - RJT382 Set up the AT&T CL82407 cordless smart call blocker answering system: unboxing, time, directory, voicemail, answering system, call log, speed dial, call screening, and wall mounting explained by Robojax. https://www.youtube.com/embed/MuvXD0vIVWM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=383 2026-08-26 https://robojax.com/images/video_thumbs/343_8NuN1Yk91uU.jpg Review of ZK-PP2K 8A PWM 4.5V to 30V Motor Driver controller - RJT383 Review ZK-PP2K 8A PWM motor driver for 3.3V to 30V motors. See PWM and pulse modes, full-load testing, and thermal imaging to find the hottest spot. https://www.youtube.com/embed/8NuN1Yk91uU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=384 2026-08-26 https://robojax.com/images/video_thumbs/343_8NuN1Yk91uU.jpg Review of ZK-PP2K 8A PWM 4.5V to 30V Motor Driver controller - RJT383 Solve quadratic equations on Arduino, finding real and imaginary roots of 2nd degree polynomials. Code and wiring for the solver. https://www.youtube.com/embed/8NuN1Yk91uU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=385 2026-08-26 https://robojax.com/images/video_thumbs/344_drrW1EHqKuM.jpg ESP32 Tutorial 51 - Temperatuer and Humidty over WiFi with DHT - RJT385 Measure temperature and humidity with DHT11/DHT22 and ESP32, then view live data on any browser via Wi-Fi. Step-by-step wiring and code guide. https://www.youtube.com/embed/drrW1EHqKuM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=387 2026-08-26 https://robojax.com/images/video_thumbs/345_76UR9dDuf-k.jpg Send temperature to over 1.4 km using Wi-Fi LoRa ESP32 | Robojax Transmit DHT22 temperature data over 1.4 km using Heltec WiFi LoRa 32 V3. Wiring, code, and range test for long-range wireless monitoring. https://www.youtube.com/embed/76UR9dDuf-k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=389 2026-08-26 https://robojax.com/images/video_thumbs/346_PRIXqdjhQhg.jpg Build Arduino Electronic Lock with Keypad LCD - RJT389 Build an electronic lock with Arduino, 4x3 keypad, and I2C LCD. Enter PIN 0753 to unlock, auto-lock after 5 seconds, with relay control on pin 13. https://www.youtube.com/embed/PRIXqdjhQhg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=390 2026-08-26 https://robojax.com/images/video_thumbs/347_RZIfzPwglOo.jpg H Bridge MOSFET Motor Driver with High-Side Gate driver IR2101 PCB projecgt 10 PCB for $1 - RJT390 Control a DC motor with the RJMD-R2101 H-Bridge MOSFET driver using IRFZ44N and IR2101. Wire it to Arduino, use PWM for speed and direction, and run example code. https://www.youtube.com/embed/RZIfzPwglOo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=391 2026-08-26 https://robojax.com/images/video_thumbs/348_au_VL0BlYZ0.jpg Build 555 Relay Timer of 20A 0-10 minutest on breadboard and full PCB design 10 PCB for $1 - RJT391 Build a relay timer circuit with RJT520 relay and 555 timer IC, operating at 6V to 18V and switching up to 20A. Includes wiring and code. https://www.youtube.com/embed/au_VL0BlYZ0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=392 2026-08-26 https://robojax.com/images/video_thumbs/349_6ugrL5ziPn8.jpg Building H-Bridge Motor driver using TIP120 TIP125full PCB Design with arduino - RJT392 Build an H-bridge motor driver on a breadboard using TIP120 and TIP125 Darlington transistors with Arduino. Control DC motor direction and speed via PWM. https://www.youtube.com/embed/6ugrL5ziPn8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=394 2026-08-26 https://robojax.com/images/video_thumbs/350_xhPXovgFhso.jpg Build up to 8 digits Seven Segment display using 74HC595 Shift Register | RJT394 Drive 8 LEDs with a 74HC595 shift register on Arduino, turning them on one by one to create a walking light effect. Code and wiring for beginners. https://www.youtube.com/embed/xhPXovgFhso?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=395 2026-08-26 https://robojax.com/images/video_thumbs/350_xhPXovgFhso.jpg Build up to 8 digits Seven Segment display using 74HC595 Shift Register | RJT394 Drive a single-digit 7-segment display with the 74HC595 shift register on Arduino. See how to light segments 0-9 and control LEDs with minimal pins. https://www.youtube.com/embed/xhPXovgFhso?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=396 2026-08-26 https://robojax.com/images/video_thumbs/350_xhPXovgFhso.jpg Build up to 8 digits Seven Segment display using 74HC595 Shift Register | RJT394 Drive a two-digit 7-segment display with the 74HC595 shift register on Arduino. See how to cascade two 74HC595 ICs to control 16 LEDs and display numbers 00-99. https://www.youtube.com/embed/xhPXovgFhso?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=397 2026-08-26 https://robojax.com/images/video_thumbs/350_xhPXovgFhso.jpg Build up to 8 digits Seven Segment display using 74HC595 Shift Register | RJT394 Build an 8-digit seven-segment display using two 74HC595 shift registers. Wire and code to show integers and decimals on Arduino. https://www.youtube.com/embed/xhPXovgFhso?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=398 2026-08-26 https://robojax.com/images/video_thumbs/350_xhPXovgFhso.jpg Build up to 8 digits Seven Segment display using 74HC595 Shift Register | RJT394 Adjust the delay sequence time for a 7-segment LED display using a 74HC595 shift register and a potentiometer. Control multiplexing speed with Arduino. https://www.youtube.com/embed/xhPXovgFhso?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=399 2026-08-26 https://robojax.com/images/video_thumbs/350_xhPXovgFhso.jpg Build up to 8 digits Seven Segment display using 74HC595 Shift Register | RJT394 Measure DC voltage with Arduino and display it on an 8-digit seven-segment LED using two 74HC595 shift registers. See voltage changes via a variable resistor. https://www.youtube.com/embed/xhPXovgFhso?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=400 2026-08-26 https://robojax.com/images/video_thumbs/351_j_BwZT9z-0g.jpg Output DC /AC Voltage using MCP4725 DAC with LCD and PWM to Voltage Converter with Arduino - RJT400 Use the MCP4725 12-bit DAC with Arduino to output DC voltage, sine/triangular waves, control voltage via serial, convert PWM, and more. Wiring and code included. https://www.youtube.com/embed/j_BwZT9z-0g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=401 2026-08-26 https://robojax.com/images/video_thumbs/351_j_BwZT9z-0g.jpg Output DC /AC Voltage using MCP4725 DAC with LCD and PWM to Voltage Converter with Arduino - RJT400 Set the MCP4725 12-bit DAC output voltage from the Arduino Serial Monitor. See wiring, code, and library usage for precise analog control. https://www.youtube.com/embed/j_BwZT9z-0g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=402 2026-08-26 https://robojax.com/images/video_thumbs/351_j_BwZT9z-0g.jpg Output DC /AC Voltage using MCP4725 DAC with LCD and PWM to Voltage Converter with Arduino - RJT400 Convert PWM duty cycle to voltage using MCP4725 12-bit DAC with Arduino. Wiring, code, and library explained for accurate analog output. https://www.youtube.com/embed/j_BwZT9z-0g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=403 2026-08-26 https://robojax.com/images/video_thumbs/351_j_BwZT9z-0g.jpg Output DC /AC Voltage using MCP4725 DAC with LCD and PWM to Voltage Converter with Arduino - RJT400 Use two MCP4725 12-bit DAC modules with Arduino to generate dual analog outputs. Wiring, code, and library setup for multi-DAC projects. https://www.youtube.com/embed/j_BwZT9z-0g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=404 2026-08-26 https://robojax.com/images/video_thumbs/351_j_BwZT9z-0g.jpg Output DC /AC Voltage using MCP4725 DAC with LCD and PWM to Voltage Converter with Arduino - RJT400 Set MCP4725 DAC output voltage with a push button on Arduino. Adjust voltage levels step by step using this 12-bit DAC module. Wiring and code included. https://www.youtube.com/embed/j_BwZT9z-0g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=408 2026-08-26 https://robojax.com/images/video_thumbs/798_TQ7R2bY-MWU.jpg Using 28BYJ-48 Stepper Motor Push button Speed with 8 projects: Ultimate Video Tutorial Lesson 107 Rotate the 28BYJ-48 stepper motor forward and backward with Arduino Uno and ULN2003 driver. Set direction in code using the Stepper library at 10 RPM. https://www.youtube.com/embed/TQ7R2bY-MWU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=409 2026-08-26 https://robojax.com/images/video_thumbs/798_TQ7R2bY-MWU.jpg Using 28BYJ-48 Stepper Motor Push button Speed with 8 projects: Ultimate Video Tutorial Lesson 107 Control a 28BYJ-48 stepper motor with Arduino via Serial Monitor. Enter 'f' or 'r' to rotate forward or reverse using ULN2003 driver. https://www.youtube.com/embed/TQ7R2bY-MWU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=410 2026-08-26 https://robojax.com/images/video_thumbs/798_TQ7R2bY-MWU.jpg Using 28BYJ-48 Stepper Motor Push button Speed with 8 projects: Ultimate Video Tutorial Lesson 107 Control a 28BYJ-48 stepper motor with three push buttons using Arduino: CW, CCW, and stop. Includes wiring and code for STPB-1. https://www.youtube.com/embed/TQ7R2bY-MWU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=411 2026-08-26 https://robojax.com/images/video_thumbs/798_TQ7R2bY-MWU.jpg Using 28BYJ-48 Stepper Motor Push button Speed with 8 projects: Ultimate Video Tutorial Lesson 107 Control a 28BYJ-48 stepper motor with Arduino using a push button. Motor rotates only while STPB-2 is held, enabling jog control for manual positioning. https://www.youtube.com/embed/TQ7R2bY-MWU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=412 2026-08-26 https://robojax.com/images/video_thumbs/798_TQ7R2bY-MWU.jpg Using 28BYJ-48 Stepper Motor Push button Speed with 8 projects: Ultimate Video Tutorial Lesson 107 Trigger one full 28BYJ-48 stepper motor revolution per press of STPB-3 button with Arduino and ULN2003 driver. Includes wiring and code. https://www.youtube.com/embed/TQ7R2bY-MWU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=413 2026-08-26 https://robojax.com/images/video_thumbs/798_TQ7R2bY-MWU.jpg Using 28BYJ-48 Stepper Motor Push button Speed with 8 projects: Ultimate Video Tutorial Lesson 107 Control a 28BYJ-48 stepper motor with three push buttons and set angle and speed via Serial Monitor. Includes wiring and code for Arduino. https://www.youtube.com/embed/TQ7R2bY-MWU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=414 2026-08-26 https://robojax.com/images/video_thumbs/798_TQ7R2bY-MWU.jpg Using 28BYJ-48 Stepper Motor Push button Speed with 8 projects: Ultimate Video Tutorial Lesson 107 Control a 28BYJ-48 stepper motor to any angle using STPB-5 push buttons with Arduino. Set direction, speed, and rotate 90° or 180° with button presses. https://www.youtube.com/embed/TQ7R2bY-MWU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=415 2026-08-26 https://robojax.com/images/video_thumbs/798_TQ7R2bY-MWU.jpg Using 28BYJ-48 Stepper Motor Push button Speed with 8 projects: Ultimate Video Tutorial Lesson 107 Control 28BYJ-48 stepper motor speed and direction with a potentiometer and Arduino. Wiring, code, and demo for dynamic analog control. https://www.youtube.com/embed/TQ7R2bY-MWU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=416 2026-08-26 https://robojax.com/images/video_thumbs/801_TduSOX6CMr4.jpg Using Micro SD Card and Data logging with Arduino | Arduino Step by Step Course Lesson 106 Read voltage from a potentiometer with Arduino and log data to a microSD card. Includes wiring, code, and CSV logging for data analysis. https://www.youtube.com/embed/TduSOX6CMr4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=417 2026-08-26 https://robojax.com/images/video_thumbs/352_gz9xqvRroDY.jpg 7 projects Build LED LCD Alarm Clock using DS1307 with Arduino | Lesson 105 - RJT416 Read voltage from a potentiometer and log it to a Micro SD card in CSV format using Arduino. Display recorded data on serial monitor when button pressed. https://www.youtube.com/embed/gz9xqvRroDY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=418 2026-08-26 https://robojax.com/images/video_thumbs/352_gz9xqvRroDY.jpg 7 projects Build LED LCD Alarm Clock using DS1307 with Arduino | Lesson 105 - RJT416 Create two files simultaneously on a microSD card with Arduino. Log potentiometer voltage in CSV format for Excel analysis. Simple wiring and code. https://www.youtube.com/embed/gz9xqvRroDY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=419 2026-08-26 https://robojax.com/images/video_thumbs/352_gz9xqvRroDY.jpg 7 projects Build LED LCD Alarm Clock using DS1307 with Arduino | Lesson 105 - RJT416 Build a basic Arduino clock using DS1307 RTC module and display time on the serial monitor. Step-by-step wiring and code for accurate timekeeping. https://www.youtube.com/embed/gz9xqvRroDY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=420 2026-08-26 https://robojax.com/images/video_thumbs/352_gz9xqvRroDY.jpg 7 projects Build LED LCD Alarm Clock using DS1307 with Arduino | Lesson 105 - RJT416 Build an alarm clock with DS1307 RTC and Arduino. Set a specific time to trigger a buzzer and relay to control an AC bulb or other device. https://www.youtube.com/embed/gz9xqvRroDY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=421 2026-08-26 https://robojax.com/images/video_thumbs/352_gz9xqvRroDY.jpg 7 projects Build LED LCD Alarm Clock using DS1307 with Arduino | Lesson 105 - RJT416 Build an LED seven-segment clock using DS1307 RTC and Arduino. Display time on HT16K33 4-digit display with this hands-on tutorial. https://www.youtube.com/embed/gz9xqvRroDY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=422 2026-08-26 https://robojax.com/images/video_thumbs/352_gz9xqvRroDY.jpg 7 projects Build LED LCD Alarm Clock using DS1307 with Arduino | Lesson 105 - RJT416 Build an unlimited Arduino alarm with the DS1307 RTC module. Control multiple devices at set times with relay outputs and serial monitor titles. https://www.youtube.com/embed/gz9xqvRroDY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=423 2026-08-26 https://robojax.com/images/video_thumbs/352_gz9xqvRroDY.jpg 7 projects Build LED LCD Alarm Clock using DS1307 with Arduino | Lesson 105 - RJT416 Display a full calendar and clock on LCD1602 or LCD2004 using Arduino and DS1307 RTC module with I2C interface. Build a precise LCD clock with only 4 wires. https://www.youtube.com/embed/gz9xqvRroDY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=424 2026-08-26 https://robojax.com/images/video_thumbs/352_gz9xqvRroDY.jpg 7 projects Build LED LCD Alarm Clock using DS1307 with Arduino | Lesson 105 - RJT416 Build an Arduino LCD clock with DS1307 RTC module and alarm. Display full calendar and time on LCD1602 or LCD2004 via I2C, using only four wires. https://www.youtube.com/embed/gz9xqvRroDY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=425 2026-08-26 https://robojax.com/images/video_thumbs/353_oufDb7AtvNk.jpg How measure DC Voltage and Current and build Energy meter with LCD Display | Lesson 104 - RJT425 Measure DC current with a shunt resistor and Arduino. See how to wire the shunt, read voltage, and calculate current for your projects. https://www.youtube.com/embed/oufDb7AtvNk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=426 2026-08-26 https://robojax.com/images/video_thumbs/353_oufDb7AtvNk.jpg How measure DC Voltage and Current and build Energy meter with LCD Display | Lesson 104 - RJT425 Measure current with a shunt resistor and Arduino, displaying readings on an LCD1602 I2C module. Build an energy meter with this hands-on guide. https://www.youtube.com/embed/oufDb7AtvNk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=427 2026-08-26 https://robojax.com/images/video_thumbs/354_Q5enXzaNXZk.jpg Using HT1621 6 Digits Seven Segment LCD Display | Lesson 103: Arduino Step By Step Course - RJT427 Display integers, floats, and temperature on an HT1621 six-digit seven-segment LCD with Arduino. Wiring, library, and code explained. https://www.youtube.com/embed/Q5enXzaNXZk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=428 2026-08-26 https://robojax.com/images/video_thumbs/355_W_Wm28nQAYA.jpg Lesson 102: Using ZK-5AD 4A Dual DC Motor Driver TA6586 4A 14V The best Motor Driver - RJT428 Control two 4A DC motors with the ZK-5DA driver module and Arduino. Learn wiring, PWM speed control, and code for direction and braking. https://www.youtube.com/embed/W_Wm28nQAYA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=429 2026-08-26 https://robojax.com/images/video_thumbs/356_LVd9_i-BQcg.jpg Lesson 101: Using IR Remote to control TV, AC Bulb with Relay, DC Motor and Servo Motor - RJT429 Decode any IR remote code using Arduino. Identify the protocol and hex value of each button press to replicate or log remote signals. https://www.youtube.com/embed/LVd9_i-BQcg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=430 2026-08-26 https://robojax.com/images/video_thumbs/356_LVd9_i-BQcg.jpg Lesson 101: Using IR Remote to control TV, AC Bulb with Relay, DC Motor and Servo Motor - RJT429 Turn an AC bulb or load on/off with a relay using an IR remote and Arduino. Control high-voltage devices safely with this hands-on guide. https://www.youtube.com/embed/LVd9_i-BQcg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=431 2026-08-26 https://robojax.com/images/video_thumbs/356_LVd9_i-BQcg.jpg Lesson 101: Using IR Remote to control TV, AC Bulb with Relay, DC Motor and Servo Motor - RJT429 Use an Arduino as a TV remote to control your television. Learn how to send IR signals and replace your remote with this hands-on guide. https://www.youtube.com/embed/LVd9_i-BQcg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=432 2026-08-26 https://robojax.com/images/video_thumbs/356_LVd9_i-BQcg.jpg Lesson 101: Using IR Remote to control TV, AC Bulb with Relay, DC Motor and Servo Motor - RJT429 Control a DC motor with a remote control using Arduino. Learn the wiring and code to operate a motor remotely with this hands-on tutorial. https://www.youtube.com/embed/LVd9_i-BQcg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=433 2026-08-26 https://robojax.com/images/video_thumbs/356_LVd9_i-BQcg.jpg Lesson 101: Using IR Remote to control TV, AC Bulb with Relay, DC Motor and Servo Motor - RJT429 Control a servo motor with an IR remote and Arduino. See how to wire the receiver and write code to move the servo to set positions. https://www.youtube.com/embed/LVd9_i-BQcg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=434 2026-08-26 https://robojax.com/images/video_thumbs/357_BUSqppjNw-Y.jpg Lesson 100: Control Servo Motor with your hand gesture Sensor and ambient light APDS-9960 -RJT434 Control a servo motor with hand gestures using an APDS-9960 sensor and Arduino. Move the servo to angles or full motion based on gestures. Code and wiring included. https://www.youtube.com/embed/BUSqppjNw-Y?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=435 2026-08-26 https://robojax.com/images/video_thumbs/358_LEQfzmO9Wm0.jpg Lesson 99: Building Arduino Digital Clock using DS3231 LCD and Seven Segment Display - RJT435 Display a basic clock on the serial monitor using DS3231 RTC module with Arduino. Step-by-step guide for accurate timekeeping. https://www.youtube.com/embed/LEQfzmO9Wm0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=436 2026-08-26 https://robojax.com/images/video_thumbs/358_LEQfzmO9Wm0.jpg Lesson 99: Building Arduino Digital Clock using DS3231 LCD and Seven Segment Display - RJT435 Build an alarm clock with Arduino and DS3231 RTC. Trigger a buzzer and LED at set times, or use a relay for AC loads. Includes code and wiring. https://www.youtube.com/embed/LEQfzmO9Wm0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=437 2026-08-26 https://robojax.com/images/video_thumbs/358_LEQfzmO9Wm0.jpg Lesson 99: Building Arduino Digital Clock using DS3231 LCD and Seven Segment Display - RJT435 Build an LCD clock with Arduino and DS3231 RTC module. Display time and date on a 16x2 LCD. Step-by-step guide for hobbyists. https://www.youtube.com/embed/LEQfzmO9Wm0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=438 2026-08-26 https://robojax.com/images/video_thumbs/358_LEQfzmO9Wm0.jpg Lesson 99: Building Arduino Digital Clock using DS3231 LCD and Seven Segment Display - RJT435 Build an LED 4-digit clock using Arduino, DS3231 RTC, and HT16K33 display. This code shows basic time display with the HT16K33 library. https://www.youtube.com/embed/LEQfzmO9Wm0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=439 2026-08-26 https://robojax.com/images/video_thumbs/358_LEQfzmO9Wm0.jpg Lesson 99: Building Arduino Digital Clock using DS3231 LCD and Seven Segment Display - RJT435 Build an LED 4-digit clock with Arduino and HT16K33 display. This code adds time blinking to the DS3231 RTC clock module project. https://www.youtube.com/embed/LEQfzmO9Wm0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=440 2026-08-26 https://robojax.com/images/video_thumbs/358_LEQfzmO9Wm0.jpg Lesson 99: Building Arduino Digital Clock using DS3231 LCD and Seven Segment Display - RJT435 Create unlimited alarms with DS3231 RTC and Arduino. Use a push button to reset alarms when triggered. Watch the video for full wiring and code details. https://www.youtube.com/embed/LEQfzmO9Wm0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=441 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Turn an LED on and off with Arduino using a push button. See wiring diagram and fully explained code for this 10-LED project, including a traffic light example. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=442 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Turn an LED on and off with a push button using Arduino. This lesson explains wiring and code for a simple button-controlled LED project. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=443 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Toggle an LED on/off with a push button using Arduino. See wiring diagram and fully explained code for this 10-LED project. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=444 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Fade an LED light using Arduino with brightness control. This project code makes the LED slowly brighten and fade out, demonstrating PWM-based fading for hobbyists. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=445 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Fade an LED when a push button is pressed using Arduino. This project shows wiring and code to control LED brightness with button input. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=446 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Build a Seesaw LED game with Arduino using 10 LEDs and a push button. Code explained and demonstrated with multiple settings changes. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=447 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Build a walking light effect with Arduino and 5 LEDs. Step-by-step wiring and code explanation for this LED chaser project. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=448 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Control 5 LEDs with a push button on Arduino. Each press turns on the next LED and turns off the previous, creating a walking light effect. Code and wiring explained. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=449 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Build an LED voltage level meter with Arduino. Read a potentiometer's voltage and display it by lighting LEDs, with code explained and demonstrated. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=450 2026-08-26 https://robojax.com/images/video_thumbs/359_OSwleCBlkuI.jpg Lesson 98: Arduino 10 LED Push button Projects, Potentiometer LED Voltmeter, Traffic Light RJT441 Build an Arduino traffic light with three LEDs and adjustable timing. See wiring, code, and how to change the sequence for each light. https://www.youtube.com/embed/OSwleCBlkuI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=451 2026-08-26 https://robojax.com/images/video_thumbs/360_6xVLbNlmK-g.jpg Lesson 97: Controlling Servo Motor using Rotary Encoder and Display Angle On LCD - RJT451 Detect rotary encoder rotation and switch presses with Arduino, then control a servo motor and display its angle on an LCD. Step-by-step wiring and code. https://www.youtube.com/embed/6xVLbNlmK-g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=452 2026-08-26 https://robojax.com/images/video_thumbs/360_6xVLbNlmK-g.jpg Lesson 97: Controlling Servo Motor using Rotary Encoder and Display Angle On LCD - RJT451 Control a servo motor's position with a rotary encoder on Arduino, displaying the angle on an LCD. Includes wiring, code, and demo. https://www.youtube.com/embed/6xVLbNlmK-g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=453 2026-08-26 https://robojax.com/images/video_thumbs/360_6xVLbNlmK-g.jpg Lesson 97: Controlling Servo Motor using Rotary Encoder and Display Angle On LCD - RJT451 Control a servo motor with a rotary encoder and display its angle on an LCD using Arduino. Step-by-step wiring and code for precise position control. https://www.youtube.com/embed/6xVLbNlmK-g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=454 2026-08-26 https://robojax.com/images/video_thumbs/361_XevQYG_A5xA.jpg Lesson 96: Barometric Pressure, Temperature, Approximate Altitude Sensor BMP390 with LCD - RJT454 Measure barometric pressure, temperature, and approximate altitude with the BMP390 sensor and Arduino UNO or MEGA. Includes I2C and SPI wiring, code, and LCD display options. https://www.youtube.com/embed/XevQYG_A5xA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=455 2026-08-26 https://robojax.com/images/video_thumbs/361_XevQYG_A5xA.jpg Lesson 96: Barometric Pressure, Temperature, Approximate Altitude Sensor BMP390 with LCD - RJT454 Measure barometric pressure, temperature, and approximate altitude with the BMP390 sensor and Arduino UNO or MEGA. Display readings on LCD1602 or LCD2004 via I2C. Wiring and code explained. https://www.youtube.com/embed/XevQYG_A5xA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=456 2026-08-26 https://robojax.com/images/video_thumbs/361_XevQYG_A5xA.jpg Lesson 96: Barometric Pressure, Temperature, Approximate Altitude Sensor BMP390 with LCD - RJT454 Measure barometric pressure, temperature, and approximate altitude with the BMP390 sensor and Arduino UNO or MEGA, displaying data on an LCD2004 via I2C. https://www.youtube.com/embed/XevQYG_A5xA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=457 2026-08-26 https://robojax.com/images/video_thumbs/361_XevQYG_A5xA.jpg Lesson 96: Barometric Pressure, Temperature, Approximate Altitude Sensor BMP390 with LCD - RJT454 Measure barometric pressure, temperature, and approximate altitude with BMP390 and Arduino. Display on serial monitor or LCD, and use as a thermostat to control heater or cooler. https://www.youtube.com/embed/XevQYG_A5xA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=458 2026-08-26 https://robojax.com/images/video_thumbs/362_E-H-4igygzA.jpg Lesson 91: Controlling Servo motor using potentiometer and display angle on LCD - RJT458 Control a servo motor with a potentiometer to set angles 0-180° and display the angle on an LCD. Wiring diagram and Arduino code included. https://www.youtube.com/embed/E-H-4igygzA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=459 2026-08-26 https://robojax.com/images/video_thumbs/363_0XihwdulmDQ.jpg Lesson 95: Using L293D 4 DC Motors Shield for Arduino UNO and Mega - RJT459 Control four DC motors with the L293D motor shield and Arduino. Wire the shield, install the Adafruit library, and run motors forward or backward with code examples. https://www.youtube.com/embed/0XihwdulmDQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=460 2026-08-26 https://robojax.com/images/video_thumbs/364_qJebLpzLE24.jpg Lesson 87: How to control Servo motor with a push button switch SPB-1 - RJT460 Control a servo motor with a push-button switch. Press to move to 180 degrees, then return to 0. Code explained for Arduino. https://www.youtube.com/embed/qJebLpzLE24?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=461 2026-08-26 https://robojax.com/images/video_thumbs/141_RRQASevYK3g.jpg Lesson 84: How to change the I2C address for VL53L0X laser distance sensor RJT145 Change the I2C address of VL53L0X 200cm laser distance sensors with Arduino to use multiple sensors. Code explained and demonstrated. https://www.youtube.com/embed/RRQASevYK3g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=462 2026-08-26 https://robojax.com/images/video_thumbs/272_0glBk917HPg.jpg Lesson 83: How to use 2 or more VL53L0X ToF Laser Distance Sensor - RJT300 Measure distance with two or more VL53L0X 200cm laser ToF sensors using Arduino. Code explained and demonstrated for multiple sensors. https://www.youtube.com/embed/0glBk917HPg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=463 2026-08-26 https://robojax.com/images/video_thumbs/292_Lt-Zhm_XY38.jpg Display distance from VL53L1X Distance Sensor on Arduino LCD - RJT325 Measure distance up to 400cm with the VL53L1X laser ToF sensor and Arduino, displaying readings on an LCD1602. Wiring and code explained. https://www.youtube.com/embed/Lt-Zhm_XY38?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=464 2026-08-26 https://robojax.com/images/video_thumbs/218_Sc_iVfeocvg.jpg Arduino code for VL53L1X Time-of-Flight 400cm Laser distance sensor - RJT232 Measure distance up to 400cm with the VL53L1X laser ToF sensor and Arduino. Display readings on LCD1602. Wiring and code explained. https://www.youtube.com/embed/Sc_iVfeocvg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=465 2026-08-26 https://robojax.com/images/video_thumbs/11_0GxFoq_zPt4.jpg Lesson 80: How to measure distance with VL53L0X GY-530 laser distance meter for Arduino RJT12 Measure distance from 0 to 200cm with the VL53L0X laser ToF sensor and Arduino. Wiring, code explanation, and demonstration for a single blue module. https://www.youtube.com/embed/0GxFoq_zPt4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=466 2026-08-26 https://robojax.com/images/video_thumbs/365_OtU7WRun6dU.jpg Lesson 79: Display distance from VL53L0X on LED display TM1637 - RJT466 Measure distance with VL53L0X laser ToF sensor and display it on TM1637 4-digit LED display. Wiring diagram, code explanation, and demo for Arduino. https://www.youtube.com/embed/OtU7WRun6dU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=467 2026-08-26 https://robojax.com/images/video_thumbs/366_CUg8VheNyoU.jpg Lesson 77: Using VL53L0X 200cm Laser Distance Sensor - RJT467 Measure distance with the VL53L0X laser ToF sensor and Arduino, displaying results on an LCD1602 or LCD2004. Wiring and code explained. https://www.youtube.com/embed/CUg8VheNyoU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=468 2026-08-26 https://robojax.com/images/video_thumbs/366_CUg8VheNyoU.jpg Lesson 77: Using VL53L0X 200cm Laser Distance Sensor - RJT467 Measure distance up to 200cm with the VL53L0X laser ToF sensor and Arduino. Full wiring, code explanation, and demo for two sensors. https://www.youtube.com/embed/CUg8VheNyoU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=469 2026-08-26 https://robojax.com/images/video_thumbs/334__H9D0czQpSI.jpg Lesson 76: Using one or more VL6180X 20cm Time-of-Flight proximity sensor with Arduino - RJT372 Measure distances up to 20 cm with the VL6180X laser distance sensor and Arduino. Wire it, install the library, and read range in millimeters via I2C. https://www.youtube.com/embed/_H9D0czQpSI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=470 2026-08-26 https://robojax.com/images/video_thumbs/334__H9D0czQpSI.jpg Lesson 76: Using one or more VL6180X 20cm Time-of-Flight proximity sensor with Arduino - RJT372 Measure distance with two or more VL6180 laser ToF sensors and Arduino. Wiring diagram and fully explained code for multiple sensors. https://www.youtube.com/embed/_H9D0czQpSI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=471 2026-08-26 https://robojax.com/images/video_thumbs/367_uxR6gz6bvmk.jpg Lesson 75: Obstacle Avoidance Proximity sensing using Infrared module with Arduino - RJT471 Detect obstacles with a laser transmitter and receiver using Arduino. This lesson shows how to connect and program the components for reliable obstacle detection. https://www.youtube.com/embed/uxR6gz6bvmk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=472 2026-08-26 https://robojax.com/images/video_thumbs/139_WQ3oFyF5qeY.jpg Lesson 74: Using 2 or Sharp Infrared Sensor Module with Arduino RJT143 Measure distances with two Sharp infrared sensors on Arduino. Wire both sensors, read analog values, and display results in this hands-on tutorial. https://www.youtube.com/embed/WQ3oFyF5qeY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=473 2026-08-26 https://robojax.com/images/video_thumbs/368_4f0UD8O768I.jpg Lesson 73: Obstacle Avoidance, Distance measurement using Infrared Sensor - RJT473 Measure distance with a Sharp infrared sensor and Arduino. This lesson shows how to connect the sensor and read distance values in your sketch. https://www.youtube.com/embed/4f0UD8O768I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=474 2026-08-26 https://robojax.com/images/video_thumbs/369_ggrSmv99Cxs.jpg Lesson 72: Obstacle detection using Laser Transmitter and receiver- RJT474 Detect obstacles with a laser transmitter and receiver module and Arduino. See how to wire the sensor and program the board to trigger an LED when the beam is blocked. https://www.youtube.com/embed/ggrSmv99Cxs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=475 2026-08-26 https://robojax.com/images/video_thumbs/370_CpCLa60WNXY.jpg Lesson 70: Measure Distance Using Ultrasonic Sensor - RJT475 Measure distance up to 3 meters using the HC-SR04 ultrasonic sensor with Arduino. Step-by-step guide for wiring and programming. https://www.youtube.com/embed/CpCLa60WNXY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=476 2026-08-26 https://robojax.com/images/video_thumbs/371_bu0LHgXq7Pw.jpg Lesson 69: Infrared Proximity Sensor E18-D80NK - RJT476 Measure distance with the E18-D80NK infrared proximity sensor and Arduino. Learn wiring, code, and how to detect objects within 3-80 cm range. https://www.youtube.com/embed/bu0LHgXq7Pw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=477 2026-08-26 https://robojax.com/images/video_thumbs/125_Q9aBI4ELKC4.jpg Lesson 68, Home Automation: control 16 Channel Relay module using Arduino control 16 AC loads RJT12 Control a 16-channel relay with Arduino UNO or MEGA. Learn wiring, code, and how to fix the voltage issue. Drive multiple relays with just four wires. https://www.youtube.com/embed/Q9aBI4ELKC4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=478 2026-08-26 https://robojax.com/images/video_thumbs/150_dkESWpdDBYk.jpg Lesson 67: Controlling 8 channel relay with a 4x3 keypad to control 4 AC or DC loads RJT155 Control an 8-channel relay with a keypad using Arduino. Learn how to wire and program the setup to switch multiple devices with key presses. https://www.youtube.com/embed/dkESWpdDBYk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=479 2026-08-26 https://robojax.com/images/video_thumbs/372_0PW22PD89u0.jpg Lesson 66: Controlling 4 channel relay with 4 push buttons- RJT479 Control 4 AC bulbs or loads with a 4-channel relay and 4 push buttons. Toggle light, push-on, push-off modes for each channel. https://www.youtube.com/embed/0PW22PD89u0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=480 2026-08-26 https://robojax.com/images/video_thumbs/372_0PW22PD89u0.jpg Lesson 66: Controlling 4 channel relay with 4 push buttons- RJT479 Control 4 AC bulbs or loads with a 4-channel relay and 4 push buttons using push-keep logic. Step-by-step guide for Arduino, ESP32, and more. https://www.youtube.com/embed/0PW22PD89u0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=481 2026-08-26 https://robojax.com/images/video_thumbs/373_jGncm9kPt3Y.jpg Lesson 65: Controlling two channel Solid State Relay with push button switches - RJT481 Control a two-channel solid-state relay with push buttons using an Arduino. Step-by-step guide for wiring and programming the relay module. https://www.youtube.com/embed/jGncm9kPt3Y?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=482 2026-08-26 https://robojax.com/images/video_thumbs/374_DumIZ3lkHP4.jpg Lesson 64: Using Solid State Relay with Arduino - RJT482 Use solid-state relays with Arduino to control AC loads safely. Learn wiring and code for reliable switching in your projects. https://www.youtube.com/embed/DumIZ3lkHP4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=483 2026-08-26 https://robojax.com/images/video_thumbs/375_N-xbxtGGoHw.jpg Lesson 63: Introduction to using relay with Arduino - RJT483 Introduction to using relays with Arduino: how to control high-power devices safely with a relay module and simple code. https://www.youtube.com/embed/N-xbxtGGoHw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=484 2026-08-26 https://robojax.com/images/video_thumbs/376_obBX9hyH5mM.jpg Lesson 62: Time control without delay, LED blink with millis() - RJT484 Measure time with millis() on Arduino without halting other processes. See how to use millis() for basic time measurement in this example. https://www.youtube.com/embed/obBX9hyH5mM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=485 2026-08-26 https://robojax.com/images/video_thumbs/376_obBX9hyH5mM.jpg Lesson 62: Time control without delay, LED blink with millis() - RJT484 Measure push-button press intervals with millis() on Arduino. Allow a switch to be pushed after a specific time without halting other processes. Example 2. https://www.youtube.com/embed/obBX9hyH5mM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=486 2026-08-26 https://robojax.com/images/video_thumbs/376_obBX9hyH5mM.jpg Lesson 62: Time control without delay, LED blink with millis() - RJT484 Blink an LED with different ON and OFF times using the millis() function on Arduino, ESP32, or other boards. Non-blocking timing for precise control. https://www.youtube.com/embed/obBX9hyH5mM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=487 2026-08-26 https://robojax.com/images/video_thumbs/377_tZ9IjPbuHSY.jpg Lesson 61: what is Switch and Case in Arduino programming - RJT487 Use switch and case in Arduino programming to control code flow efficiently. See a practical example of this conditional structure in action. https://www.youtube.com/embed/tZ9IjPbuHSY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=488 2026-08-26 https://robojax.com/images/video_thumbs/377_tZ9IjPbuHSY.jpg Lesson 61: what is Switch and Case in Arduino programming - RJT487 Use switch and case statements in Arduino programming to control code flow efficiently. See a practical example of this control structure. https://www.youtube.com/embed/tZ9IjPbuHSY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=489 2026-08-26 https://robojax.com/images/video_thumbs/378_rbUiiJ1aSFg.jpg Lesson 60: "while" and "do while" loops in Arduino programming - RJT489 Explore a while loop example in Arduino programming, demonstrating how to use this control structure for repetitive tasks in your projects. https://www.youtube.com/embed/rbUiiJ1aSFg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=490 2026-08-26 https://robojax.com/images/video_thumbs/378_rbUiiJ1aSFg.jpg Lesson 60: "while" and "do while" loops in Arduino programming - RJT489 Explore a practical example of using a while loop in Arduino programming, demonstrating how to control program flow with this essential loop structure. https://www.youtube.com/embed/rbUiiJ1aSFg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=491 2026-08-26 https://robojax.com/images/video_thumbs/378_rbUiiJ1aSFg.jpg Lesson 60: "while" and "do while" loops in Arduino programming - RJT489 Explore a while loop example in Arduino programming, demonstrating how to repeat actions until a condition changes, ideal for beginners. https://www.youtube.com/embed/rbUiiJ1aSFg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=492 2026-08-26 https://robojax.com/images/video_thumbs/378_rbUiiJ1aSFg.jpg Lesson 60: "while" and "do while" loops in Arduino programming - RJT489 Explore a while loop example in Arduino programming, demonstrating how to control program flow with conditional loops in your sketches. https://www.youtube.com/embed/rbUiiJ1aSFg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=493 2026-08-26 https://robojax.com/images/video_thumbs/378_rbUiiJ1aSFg.jpg Lesson 60: "while" and "do while" loops in Arduino programming - RJT489 Run a do-while loop example on Arduino to repeat code until a condition is met. See how do-while differs from while in this hands-on lesson. https://www.youtube.com/embed/rbUiiJ1aSFg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=494 2026-08-26 https://robojax.com/images/video_thumbs/379_YuGJpFeoq5I.jpg Lesson 58: Multidimensional Array and example with RGB LED - RJT494 Read multidimensional array values in Arduino sketches. See how to access and display data stored in 2D arrays with clear code examples. https://www.youtube.com/embed/YuGJpFeoq5I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=495 2026-08-26 https://robojax.com/images/video_thumbs/379_YuGJpFeoq5I.jpg Lesson 58: Multidimensional Array and example with RGB LED - RJT494 Control RGB LEDs with a multidimensional array in this Arduino tutorial. Learn to program and manage multiple LEDs efficiently for dynamic color effects. https://www.youtube.com/embed/YuGJpFeoq5I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=496 2026-08-26 https://robojax.com/images/video_thumbs/379_YuGJpFeoq5I.jpg Lesson 58: Multidimensional Array and example with RGB LED - RJT494 Control an RGB LED with a common anode using Arduino. Learn wiring and code to mix colors for your projects. https://www.youtube.com/embed/YuGJpFeoq5I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=497 2026-08-26 https://robojax.com/images/video_thumbs/380_OgDZIP3VBK8.jpg Lesson 57: What is Array and "for" loop? in Arduino programming? - RJT497 Read I and array data with Arduino in this hands-on tutorial. Learn to capture and process multiple values for your electronics projects. https://www.youtube.com/embed/OgDZIP3VBK8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=498 2026-08-26 https://robojax.com/images/video_thumbs/380_OgDZIP3VBK8.jpg Lesson 57: What is Array and "for" loop? in Arduino programming? - RJT497 Turn 4 LEDs on and off using an array in Arduino. Control multiple LEDs with a simple array program. https://www.youtube.com/embed/OgDZIP3VBK8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=499 2026-08-26 https://robojax.com/images/video_thumbs/380_OgDZIP3VBK8.jpg Lesson 57: What is Array and "for" loop? in Arduino programming? - RJT497 Read and print array values in Arduino sketches. This lesson demonstrates how to access and display each element of an array using loops and serial output. https://www.youtube.com/embed/OgDZIP3VBK8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=500 2026-08-26 https://robojax.com/images/video_thumbs/380_OgDZIP3VBK8.jpg Lesson 57: What is Array and "for" loop? in Arduino programming? - RJT497 Control four LEDs on and off without an array using Arduino. Step-by-step guide for wiring and programming individual LED control. https://www.youtube.com/embed/OgDZIP3VBK8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=501 2026-08-26 https://robojax.com/images/video_thumbs/380_OgDZIP3VBK8.jpg Lesson 57: What is Array and "for" loop? in Arduino programming? - RJT497 Read age and marks using arrays in Arduino programming. Store and access data efficiently with array variables in this hands-on tutorial. https://www.youtube.com/embed/OgDZIP3VBK8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=502 2026-08-26 https://robojax.com/images/video_thumbs/380_OgDZIP3VBK8.jpg Lesson 57: What is Array and "for" loop? in Arduino programming? - RJT497 Control four LEDs with a loop on Arduino, ESP32, or ESP8266. Step-by-step code and wiring for blinking multiple LEDs in sequence. https://www.youtube.com/embed/OgDZIP3VBK8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=503 2026-08-26 https://robojax.com/images/video_thumbs/380_OgDZIP3VBK8.jpg Lesson 57: What is Array and "for" loop? in Arduino programming? - RJT497 Control 4 LEDs with different timing using Arduino. Set individual on/off intervals for each LED in this hands-on tutorial. https://www.youtube.com/embed/OgDZIP3VBK8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=504 2026-08-26 https://robojax.com/images/video_thumbs/381_KRTnaSYOEmQ.jpg Lesson 56 : What is an Arduino function and how to use them? - RJT504 Understand what a function is in Arduino programming and how it structures your code in this step-by-step course lesson. https://www.youtube.com/embed/KRTnaSYOEmQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=505 2026-08-26 https://robojax.com/images/video_thumbs/382__o7hCxYKLyc.jpg Lesson 54: Controlling DC motor using Potentiometer and push buttons - RJT505 Control a single DC motor with an L298N module, push buttons, and a potentiometer on Arduino. Toggle direction, stop, and adjust speed via PWM. https://www.youtube.com/embed/_o7hCxYKLyc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=506 2026-08-26 https://robojax.com/images/video_thumbs/382__o7hCxYKLyc.jpg Lesson 54: Controlling DC motor using Potentiometer and push buttons - RJT505 Control two DC motors with push buttons using Arduino. Step-by-step guide for wiring and programming motor control with button inputs. https://www.youtube.com/embed/_o7hCxYKLyc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=507 2026-08-26 https://robojax.com/images/video_thumbs/382__o7hCxYKLyc.jpg Lesson 54: Controlling DC motor using Potentiometer and push buttons - RJT505 Control a single DC motor with a potentiometer and push buttons. Adjust speed and direction using this hands-on Arduino tutorial. https://www.youtube.com/embed/_o7hCxYKLyc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=508 2026-08-26 https://robojax.com/images/video_thumbs/382__o7hCxYKLyc.jpg Lesson 54: Controlling DC motor using Potentiometer and push buttons - RJT505 Control two DC motors with a potentiometer and push buttons. Adjust speed and direction using this hands-on Arduino tutorial. https://www.youtube.com/embed/_o7hCxYKLyc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=509 2026-08-26 https://robojax.com/images/video_thumbs/383_fqBLIrwq2YA.jpg Lesson 53: Using L298N Motor Driver for DC Motor Control - RJT509 Control a single DC motor with an L298N motor driver and Arduino. Learn wiring and code to drive the motor forward and reverse. https://www.youtube.com/embed/fqBLIrwq2YA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=510 2026-08-26 https://robojax.com/images/video_thumbs/383_fqBLIrwq2YA.jpg Lesson 53: Using L298N Motor Driver for DC Motor Control - RJT509 Control two DC motors with an L298N motor driver and Arduino. Learn wiring and code for precise motor control in this hands-on tutorial. https://www.youtube.com/embed/fqBLIrwq2YA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=511 2026-08-26 https://robojax.com/images/video_thumbs/383_fqBLIrwq2YA.jpg Lesson 53: Using L298N Motor Driver for DC Motor Control - RJT509 Control four DC motors with two L298N modules and an Arduino. Learn wiring and code for module A and B, each driving two motors. https://www.youtube.com/embed/fqBLIrwq2YA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=512 2026-08-26 https://robojax.com/images/video_thumbs/384_2n0vUa0cZOI.jpg Lesson 52: Controlling DC Motor using two relays | Arduino Step By Step Course - RJT512 Control a DC motor's direction with two relays and Arduino. This beginner project shows how to reverse motor rotation by switching relay states, with wiring and code examples. https://www.youtube.com/embed/2n0vUa0cZOI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=513 2026-08-26 https://robojax.com/images/video_thumbs/384_2n0vUa0cZOI.jpg Lesson 52: Controlling DC Motor using two relays | Arduino Step By Step Course - RJT512 Control a DC motor with a relay using Arduino, supporting both high and low-level triggering with advanced code. https://www.youtube.com/embed/2n0vUa0cZOI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=514 2026-08-26 https://robojax.com/images/video_thumbs/385_LkJRakZBChI.jpg Lesson 51: Control 2 DC motors using Arduino and L293D | Arduino Step by Step Course - RJT514 Control two DC motors in both directions with an Arduino and L293D motor driver. Wiring and code explained for hobbyists and engineers. https://www.youtube.com/embed/LkJRakZBChI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=515 2026-08-26 https://robojax.com/images/video_thumbs/386_-Ss67lqrtL8.jpg Lesson 50: Controlling Direction of Rotation of Motor | Arduino Step By Step Course - RJT515 Control the direction of motor rotation using Arduino and L293D. Wire the motor driver and program the Arduino to reverse motor spin. https://www.youtube.com/embed/-Ss67lqrtL8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=516 2026-08-26 https://robojax.com/images/video_thumbs/387_D4yLsWvZDw4.jpg Lesson 49: Introduction to L293D Motor driver and speed control - RJT516 Wire an L293D motor driver to an Arduino to control a DC motor. See how to connect the IC and program speed and direction. https://www.youtube.com/embed/D4yLsWvZDw4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=517 2026-08-26 https://robojax.com/images/video_thumbs/388__poeoo7qcXM.jpg Lesson 48: Introduction to DC motor | Arduino Step By Step Course - RJT517 Learn to control a DC motor's speed and direction with an Arduino and L293D or L298N driver. Wire the motor driver and program the Arduino for DIY projects. https://www.youtube.com/embed/_poeoo7qcXM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=518 2026-08-26 https://robojax.com/images/video_thumbs/389_A55QNx6kCoo.jpg Lesson 39: Using MAX6675 K-Type Thermocouple Temperature Sensor- RJT518 Wire a MAX6675 K-Type thermocouple and relay to build a thermostat. Program the Arduino to control the relay based on temperature readings. https://www.youtube.com/embed/A55QNx6kCoo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=519 2026-08-26 https://robojax.com/images/video_thumbs/390_IAj0gHTTWfw.jpg Lesson 46: Using MLX90614 with LCD - RJT519 Wire and program the MLX90614 infrared temperature sensor with an LCD1602 display to show readings on the screen. https://www.youtube.com/embed/IAj0gHTTWfw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=520 2026-08-26 https://robojax.com/images/video_thumbs/390_IAj0gHTTWfw.jpg Lesson 46: Using MLX90614 with LCD - RJT519 Wire an MLX90614 infrared thermometer to an LCD2004 display and program it to show temperature readings on Arduino, ESP32, or ESP8266. https://www.youtube.com/embed/IAj0gHTTWfw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=521 2026-08-26 https://robojax.com/images/video_thumbs/176_mXY_6LOekkw.jpg Lesson 45: Arduino Measure temperature, Pressure with BME280 with LCD1602 and LCD2004 RJT187 Wire BME280 to Arduino to measure humidity, pressure, and temperature, and display readings on an LCD. Includes custom functions for easy reading. https://www.youtube.com/embed/mXY_6LOekkw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=522 2026-08-26 https://robojax.com/images/video_thumbs/391_kVaGtxf-tvQ.jpg Lesson 44: Using BMP180 Barometric Pressure Temperature Sensor - RJT522 Use a BMP180 barometric pressure and temperature sensor with Arduino. Step-by-step wiring and programming for accurate readings in your projects. https://www.youtube.com/embed/kVaGtxf-tvQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=523 2026-08-26 https://robojax.com/images/video_thumbs/392_vHS6gGLFBh8.jpg Lesson 43: Using LM35 Temperatures Sensor with LCD - RJT523 Wire an LM35 temperature sensor to an LCD and Arduino. Read analog voltage, convert to Celsius, and display temperature on the LCD. https://www.youtube.com/embed/vHS6gGLFBh8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=524 2026-08-26 https://robojax.com/images/video_thumbs/393_LyA0yAKlf9E.jpg Lesson 35: Using HTU21D Temperature Sensor - RJT524 Wire and program the HTU21D temperature and humidity sensor with Arduino using I2C and Adafruit library. Read values on Serial Monitor with simple code. https://www.youtube.com/embed/LyA0yAKlf9E?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=525 2026-08-26 https://robojax.com/images/video_thumbs/394_RjzQ4juXgoA.jpg Lesson 40: Using MAX665 K-Type Temperature Sensor with LCD -RJT525 Wire and program two or more MAX6675 thermocouple modules with two LCD1602 displays. Step-by-step guide for multi-channel temperature reading. https://www.youtube.com/embed/RjzQ4juXgoA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=526 2026-08-26 https://robojax.com/images/video_thumbs/394_RjzQ4juXgoA.jpg Lesson 40: Using MAX665 K-Type Temperature Sensor with LCD -RJT525 Wire and program two or more MAX6675 thermocouple sensors with two LCD2004 displays. Step-by-step guide for multi-sensor temperature monitoring. https://www.youtube.com/embed/RjzQ4juXgoA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=527 2026-08-26 https://robojax.com/images/video_thumbs/394_RjzQ4juXgoA.jpg Lesson 40: Using MAX665 K-Type Temperature Sensor with LCD -RJT525 Wire a MAX6675 thermocouple module to an LCD1602 display. Program the Arduino to read temperature and show it on the LCD screen. https://www.youtube.com/embed/RjzQ4juXgoA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=528 2026-08-26 https://robojax.com/images/video_thumbs/394_RjzQ4juXgoA.jpg Lesson 40: Using MAX665 K-Type Temperature Sensor with LCD -RJT525 Wire a MAX6675 thermocouple module to an LCD2004 display for temperature readout. See how to connect and program both components. https://www.youtube.com/embed/RjzQ4juXgoA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=529 2026-08-26 https://robojax.com/images/video_thumbs/389_A55QNx6kCoo.jpg Lesson 39: Using MAX6675 K-Type Thermocouple Temperature Sensor- RJT518 Wire and program a MAX6675 K-Type thermocouple temperature sensor with Arduino in this step-by-step course lesson. Measure temperature accurately. https://www.youtube.com/embed/A55QNx6kCoo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=530 2026-08-26 https://robojax.com/images/video_thumbs/395_548PLHgZkoQ.jpg Lesson 38: Using MLX90614 Infrared Contactless Temperature Sensor- RJT530 Wire an MLX90614 infrared temperature sensor to an Arduino Uno and program it with Adafruit's library to read object and ambient temperatures in Celsius, Fahrenheit, and Kelvin. https://www.youtube.com/embed/548PLHgZkoQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=531 2026-08-26 https://robojax.com/images/video_thumbs/396_zqJRNGECAvw.jpg Lesson 37: Using BME280 Humidity, Barometric Pressure and Temperature Sensor - RJT531 Wire and program BME280 with Arduino to measure humidity, barometric pressure, and temperature. Step-by-step guide with custom functions for easy reading. https://www.youtube.com/embed/zqJRNGECAvw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=532 2026-08-26 https://robojax.com/images/video_thumbs/397_SrFJKbmiaPM.jpg Lesson 36: Using HTU21D Temperature sensor with LCD - RJT532 Wire HTU21D temperature and humidity sensor to Arduino and LCD1602 I2C display. Program it to show Celsius, Fahrenheit, Kelvin, and humidity. https://www.youtube.com/embed/SrFJKbmiaPM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=533 2026-08-26 https://robojax.com/images/video_thumbs/393_LyA0yAKlf9E.jpg Lesson 35: Using HTU21D Temperature Sensor - RJT524 Wire the HTU21D temperature and humidity sensor to an Arduino over I2C, use the Adafruit library to read Celsius, Fahrenheit, Kelvin, and humidity, and display values on the serial monitor. https://www.youtube.com/embed/LyA0yAKlf9E?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=534 2026-08-26 https://robojax.com/images/video_thumbs/393_LyA0yAKlf9E.jpg Lesson 35: Using HTU21D Temperature Sensor - RJT524 Wire the HTU21D temperature and humidity sensor to Arduino, use custom code to read Celsius, Fahrenheit, Kelvin, and humidity over I2C, and display results on serial monitor. https://www.youtube.com/embed/LyA0yAKlf9E?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=535 2026-08-26 https://robojax.com/images/video_thumbs/398_Q_rBLKdnCd4.jpg Lesson 34: Using MCP9808 Temperature Sensor with TM1637 screen - RJT535 Wire MCP9808 I2C temperature sensor to Arduino and display readings on TM1637 LED display. Step-by-step code and wiring guide for accurate temperature measurement. https://www.youtube.com/embed/Q_rBLKdnCd4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=536 2026-08-26 https://robojax.com/images/video_thumbs/399_ljPrJKAokUA.jpg Lesson 33: Using MCP9808 Temperature Sensor with LCD - RJT536 Wire MCP9808 I2C temperature sensor to Arduino and display readings on LCD1602 or LCD2004. Step-by-step code and wiring guide for accurate temperature monitoring. https://www.youtube.com/embed/ljPrJKAokUA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=537 2026-08-26 https://robojax.com/images/video_thumbs/400_fHBHzxK9mFk.jpg Lesson 32: MCP9808 High Accuracy I2C Temperature Sensor- RJT537 Wire MCP9808 I2C temperature sensor to Arduino, read temperature in custom code, and display on serial monitor with action based on value. https://www.youtube.com/embed/fHBHzxK9mFk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=538 2026-08-26 https://robojax.com/images/video_thumbs/401_efTu0YjWkXY.jpg Lesson 31: BMP280 Temperature Sensor with TM1637 Display - RJT538 Wire a BMP280 temperature sensor to an Arduino and display readings on a TM1637 LED display. Step-by-step code for LCD2004 and LCD1602 also included. https://www.youtube.com/embed/efTu0YjWkXY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=539 2026-08-26 https://robojax.com/images/video_thumbs/402_4IqMqveK38U.jpg Lesson 30: BMP280 Temperature Sensor with LCD1602- RJT539 Wire a BMP280 to Arduino and display temperature in Celsius, Fahrenheit, and Kelvin on an LCD1602. Step-by-step code and wiring guide for hobbyists. https://www.youtube.com/embed/4IqMqveK38U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=540 2026-08-26 https://robojax.com/images/video_thumbs/403_MaaQsbxclZY.jpg Lesson 29: Introduction to BMP280 Temperature Sensor - RJT540 Wire a BMP280 temperature sensor to Arduino and display readings on the Serial monitor. Step-by-step wiring and code for accurate temperature measurement. https://www.youtube.com/embed/MaaQsbxclZY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=541 2026-08-26 https://robojax.com/images/video_thumbs/828_C-1iaCPzNtU.jpg Lesson 28: DHT11 Temperature Sensor with TM1637 Display| Arduino Step By Step Course Wire DHT11 temperature sensor to Arduino and display readings on TM1637 LED display. Step-by-step code and wiring guide for accurate temperature monitoring. https://www.youtube.com/embed/C-1iaCPzNtU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=542 2026-08-26 https://robojax.com/images/video_thumbs/830_0XMLnCYkvbE.jpg Lesson 27 Using DHT11 Temperature sensor with LCD | Arduino Step By Step Course Wire DHT11 temperature sensor to Arduino and display readings on LCD1602 or LCD2004 screen. Step-by-step wiring and code for accurate temperature monitoring. https://www.youtube.com/embed/0XMLnCYkvbE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=543 2026-08-26 https://robojax.com/images/video_thumbs/406_0o5jKR7u8ts.jpg Lesson 26: Using DHT11 Temperature Sensor- RJT543 Wire and program the DHT11 temperature and humidity sensor with Arduino. Step-by-step lesson shows how to read and display temperature and humidity data on a 4-digit HT16K33 display. https://www.youtube.com/embed/0o5jKR7u8ts?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=544 2026-08-26 https://robojax.com/images/video_thumbs/407_-6qSrDUA5a8.jpg Lesson 00 What is Arduino? | Robojax Arduino Step By Step Course - RJT544 Learn what Arduino is in this brief 2:30-minute video. Discover what you can do with Arduino boards for your electronics projects. https://www.youtube.com/embed/-6qSrDUA5a8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=545 2026-08-26 https://robojax.com/images/video_thumbs/408_wHd2CWlEL1E.jpg Lesson 01 Arduino Boards | Robojax Arduino Step By Step Course - RJT545 Get an overview of Arduino boards in Lesson 1 of the Arduino Step-by-Step course. Compare Uno, Nano, Mega, and more to choose the right board for your projects. https://www.youtube.com/embed/wHd2CWlEL1E?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=546 2026-08-26 https://robojax.com/images/video_thumbs/409_zkeGJOJm17E.jpg Lesson 02 Arduino IDE Software | Robojax Arduino Step By Step Course - RJT546 Set up the Arduino IDE for your first project. Install the software, configure board and port, and write a simple blink sketch to test your Arduino board. https://www.youtube.com/embed/zkeGJOJm17E?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=547 2026-08-26 https://robojax.com/images/video_thumbs/410_1KZB3pLCWLc.jpg Lesson 04: Introduction to Base number Binary, Decimal, Hexadecimal and Octal - RJT547 Explore binary, decimal, hexadecimal, and octal number systems with examples. Understand base conversions and applications in computing and digital electronics. https://www.youtube.com/embed/1KZB3pLCWLc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=548 2026-08-26 https://robojax.com/images/video_thumbs/411_-xndPRoVk5g.jpg Lesson 03: Project LED Blink Breadboard and Resistor- RJT548 Wire an LED and resistor to an Arduino on a breadboard, calculate the resistor value for 5V or 3.3V, and program the Blink sketch to control on/off intervals. https://www.youtube.com/embed/-xndPRoVk5g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=549 2026-08-26 https://robojax.com/images/video_thumbs/412_WyWRGoACWFs.jpg Lesson 05: Serial Monitor reading user's input char, binary hex and baude rate - RJT549 Write and upload Arduino code to display text on the Serial Monitor. See how to open the monitor, set baud rate, and view output from your board. https://www.youtube.com/embed/WyWRGoACWFs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=550 2026-08-26 https://robojax.com/images/video_thumbs/412_WyWRGoACWFs.jpg Lesson 05: Serial Monitor reading user's input char, binary hex and baude rate - RJT549 Read user input from the Serial Monitor and print received data on Arduino. Learn to use Serial.read() and Serial.available() in this hands-on lesson. https://www.youtube.com/embed/WyWRGoACWFs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=551 2026-08-26 https://robojax.com/images/video_thumbs/413_Mky-04NH_CQ.jpg Lesson 08: Arduino Conditional Statements - RJT551 Wire an Arduino to read a character typed in the Serial Monitor and print it back. See the code and wiring for this simple input-output demo. https://www.youtube.com/embed/Mky-04NH_CQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=552 2026-08-26 https://robojax.com/images/video_thumbs/414_n0z6fjww8eA.jpg Lesson 06: Arduino Variables Data Types | Robojax Arduino Step By Step Course - RJT552 Wire and program Arduino with int variables and data types. See how integers store values and avoid overflow in this hands-on lesson. https://www.youtube.com/embed/n0z6fjww8eA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=553 2026-08-26 https://robojax.com/images/video_thumbs/414_n0z6fjww8eA.jpg Lesson 06: Arduino Variables Data Types | Robojax Arduino Step By Step Course - RJT552 Wire and program Arduino to store characters with char data type. See ASCII encoding, arithmetic on chars, and Serial.println output in this hands-on lesson. https://www.youtube.com/embed/n0z6fjww8eA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=554 2026-08-26 https://robojax.com/images/video_thumbs/414_n0z6fjww8eA.jpg Lesson 06: Arduino Variables Data Types | Robojax Arduino Step By Step Course - RJT552 Wire and program an Arduino to use float variables for precise decimal math. See how to declare floats, avoid rounding errors, and print values with Serial. https://www.youtube.com/embed/n0z6fjww8eA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=555 2026-08-26 https://robojax.com/images/video_thumbs/414_n0z6fjww8eA.jpg Lesson 06: Arduino Variables Data Types | Robojax Arduino Step By Step Course - RJT552 Wire and program an Arduino to use unsigned int variables, storing only positive values up to 65,535. See example code and pin wiring for this data type. https://www.youtube.com/embed/n0z6fjww8eA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=556 2026-08-26 https://robojax.com/images/video_thumbs/414_n0z6fjww8eA.jpg Lesson 06: Arduino Variables Data Types | Robojax Arduino Step By Step Course - RJT552 Wire and program Arduino to use String variables and data types. See how to declare, assign, and manipulate strings in your sketches for text-based projects. https://www.youtube.com/embed/n0z6fjww8eA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=557 2026-08-26 https://robojax.com/images/video_thumbs/414_n0z6fjww8eA.jpg Lesson 06: Arduino Variables Data Types | Robojax Arduino Step By Step Course - RJT552 Wire and program an Arduino to use Boolean variables and data types. This lesson demonstrates how to declare and use bool variables in Arduino sketches for true/false logic. https://www.youtube.com/embed/n0z6fjww8eA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=558 2026-08-26 https://robojax.com/images/video_thumbs/414_n0z6fjww8eA.jpg Lesson 06: Arduino Variables Data Types | Robojax Arduino Step By Step Course - RJT552 Wire and program an Arduino to store large numbers with the long data type. See how long differs from int and when to use it in your sketches. https://www.youtube.com/embed/n0z6fjww8eA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=559 2026-08-26 https://robojax.com/images/video_thumbs/411_-xndPRoVk5g.jpg Lesson 03: Project LED Blink Breadboard and Resistor- RJT548 Add extra 5V and GND pins to your Arduino for powering multiple components. Learn wiring and programming in this hands-on lesson for hobbyists. https://www.youtube.com/embed/-xndPRoVk5g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=560 2026-08-26 https://robojax.com/images/video_thumbs/413_Mky-04NH_CQ.jpg Lesson 08: Arduino Conditional Statements - RJT551 Write Arduino code using if, else if, and else conditional statements. See multiple examples with Serial Monitor output to understand decision-making in your sketches. https://www.youtube.com/embed/Mky-04NH_CQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=561 2026-08-26 https://robojax.com/images/video_thumbs/413_Mky-04NH_CQ.jpg Lesson 08: Arduino Conditional Statements - RJT551 Learn to read user input and print received data from the Serial Monitor using Arduino. Covers conditional statements like if, else if, and else with examples. https://www.youtube.com/embed/Mky-04NH_CQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=562 2026-08-26 https://robojax.com/images/video_thumbs/416_3K996EfPiXM.jpg Lesson 9-b: Using Switch and Push Buttons with Arduino Wire a push button or switch to Arduino, use INPUT_PULLUP to avoid external resistors, and control an LED. Step-by-step wiring and code for beginners. https://www.youtube.com/embed/3K996EfPiXM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=563 2026-08-26 https://robojax.com/images/video_thumbs/416_3K996EfPiXM.jpg Lesson 9-b: Using Switch and Push Buttons with Arduino Wire a push-button switch to an Arduino to turn on an LED for 3 seconds after release. See the circuit and code for this simple button-controlled LED project. https://www.youtube.com/embed/3K996EfPiXM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=564 2026-08-26 https://robojax.com/images/video_thumbs/417_wuNrzQ8rpYw.jpg Lesson 10: Using Potentiometer reading voltage, Analog and Digital - RJT564 Wire a potentiometer to an Arduino to read analog voltage, convert it to digital values, and measure DC voltage. Learn analog vs digital and resistor values. https://www.youtube.com/embed/wuNrzQ8rpYw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=565 2026-08-26 https://robojax.com/images/video_thumbs/417_wuNrzQ8rpYw.jpg Lesson 10: Using Potentiometer reading voltage, Analog and Digital - RJT564 Measure DC voltage with Arduino and find an unknown resistor's value using a potentiometer. Learn analog vs digital and wire the circuit in this hands-on lesson. https://www.youtube.com/embed/wuNrzQ8rpYw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=566 2026-08-26 https://robojax.com/images/video_thumbs/418_1yGh_UsBsYU.jpg Lesson 11: Using Tilt Sensor Switch with Arduino - RJT566 Wire a tilt sensor switch to Arduino to detect tilt and control an LED or relay. See schematic, code, and how to read digital input for your project. https://www.youtube.com/embed/1yGh_UsBsYU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=567 2026-08-26 https://robojax.com/images/video_thumbs/419_RS7PTtxtlQ4.jpg Lesson 12: Using Reed Switch with Arduino - RJT567 Wire a reed sensor switch to Arduino and program it to detect magnetic fields, turning an LED on or off when the switch closes. https://www.youtube.com/embed/RS7PTtxtlQ4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=568 2026-08-26 https://robojax.com/images/video_thumbs/420_R5LsKd1Rw-I.jpg Lesson 13: Using Flame Sensor module with Arduino - RJT568 Wire a flame sensor to Arduino to detect infrared and trigger a buzzer or relay. Build a simple fire alarm circuit with code examples. https://www.youtube.com/embed/R5LsKd1Rw-I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=569 2026-08-26 https://robojax.com/images/video_thumbs/421_shFs2GjHkhc.jpg Lesson 14: Using Vibration Sensor Module with Arduino - RJT569 Wire a vibration sensor module to an Arduino to detect knocks and trigger a buzzer. See pinout, code, and debouncing for reliable vibration detection. https://www.youtube.com/embed/shFs2GjHkhc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=570 2026-08-26 https://robojax.com/images/video_thumbs/422_INq8A3dLNzM.jpg Lesson 15: Arduino Sound Sensor Module | Arduino Step By Step Course - RJT570 Wire a sound sensor to Arduino digital output pin to control an AC light with claps. Basic code for clap-on, clap-off switching. https://www.youtube.com/embed/INq8A3dLNzM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=571 2026-08-26 https://robojax.com/images/video_thumbs/422_INq8A3dLNzM.jpg Lesson 15: Arduino Sound Sensor Module | Arduino Step By Step Course - RJT570 Wire a sound sensor's analog output to Arduino to control an AC bulb with claps or voice. Advanced code uses A0 pin for sound level detection. https://www.youtube.com/embed/INq8A3dLNzM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=572 2026-08-26 https://robojax.com/images/video_thumbs/423_piuUfGVafC0.jpg Lesson 16: Using HS-SR501 Motion Sensor | Arduino Step By Step Course - RJT572 Wire a motion sensor to Arduino and program pin 8 to trigger a buzzer or relay when motion is detected. Step-by-step guide for hobbyists. https://www.youtube.com/embed/piuUfGVafC0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=573 2026-08-26 https://robojax.com/images/video_thumbs/424_AGXJKU2mHsE.jpg Lesson 17: Using NJK-5002C Proximity Hall Sensor | Arduino Step By Step Course - RJT573 Wire and program the NJK-5002C Hall proximity sensor with Arduino to control a DC or AC load. Step-by-step guide with code for reliable switching. https://www.youtube.com/embed/AGXJKU2mHsE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=574 2026-08-26 https://robojax.com/images/video_thumbs/425_hkhepVzWyWE.jpg Lesson 18: Using Tilt Angle Sensor SCA60C | Arduino Step By Step Course - RJT574 Wire the SCA60C1 angle sensor to Arduino and measure tilt from -180° to +90°. See real-time angle readings on the Serial Monitor in this Robojax lesson. https://www.youtube.com/embed/hkhepVzWyWE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=575 2026-08-26 https://robojax.com/images/video_thumbs/426_pxUjEsJQW2M.jpg Lesson 19: Using LCD Screen with Arduino LCD1602 LCD2004 | Arduino Step By Step Course RJT575 Wire and program an LCD1602 or LCD2004 with I2C to an Arduino. Find the I2C address, display text, count, and measure voltage from a potentiometer. https://www.youtube.com/embed/pxUjEsJQW2M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=576 2026-08-26 https://robojax.com/images/video_thumbs/426_pxUjEsJQW2M.jpg Lesson 19: Using LCD Screen with Arduino LCD1602 LCD2004 | Arduino Step By Step Course RJT575 Measure DC voltage from a potentiometer and display it on an LCD1602 or LCD2004 I2C screen with Arduino. Learn wiring, I2C address detection, and code. https://www.youtube.com/embed/pxUjEsJQW2M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=577 2026-08-26 https://robojax.com/images/video_thumbs/427_cJqmXjERwkQ.jpg Lesson 20: Introduction to TM1637 LED Display | Arduino Step By Step Course - RJT577 Wire a TM1637 four-digit seven-segment display to Arduino and program it to show integer and hexadecimal values. Learn basic usage, wiring, and code in this hands-on lesson. https://www.youtube.com/embed/cJqmXjERwkQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=578 2026-08-26 https://robojax.com/images/video_thumbs/427_cJqmXjERwkQ.jpg Lesson 20: Introduction to TM1637 LED Display | Arduino Step By Step Course - RJT577 Wire a TM1637 four-digit seven-segment display to an Arduino and program it to count from 0, displaying integer and hexadecimal values. https://www.youtube.com/embed/cJqmXjERwkQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=579 2026-08-26 https://robojax.com/images/video_thumbs/428_BPDbU4pBSvs.jpg Lesson 21: Seven Segment Display with Arduino | Step by Step Arduino Course - RJT579 Wire and program a seven-segment display with Arduino in this step-by-step lesson. Learn to control each segment and display numbers using digital outputs. https://www.youtube.com/embed/BPDbU4pBSvs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=580 2026-08-26 https://robojax.com/images/video_thumbs/429_UZTAV2sRi9w.jpg Lesson 22: using SSD1306 OLED display | Arduino Step By Step Course - RJT580 Wire and program an SSD1306 OLED display with Arduino to show text and shapes. Step-by-step guide for hobbyists and engineers. https://www.youtube.com/embed/UZTAV2sRi9w?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=581 2026-08-26 https://robojax.com/images/video_thumbs/430_8znr77ScydM.jpg Lesson 23: MAX7219 4 Digit Display | Arduino Step By Step Course - RJT581 Wire and program a MAX7219 8-digit LED display with Arduino to show numbers and build a counter in this step-by-step lesson. https://www.youtube.com/embed/8znr77ScydM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=582 2026-08-26 https://robojax.com/images/video_thumbs/431_pJPdH7mOUzk.jpg E582 Lesson 24: 74HC595 Two Digit Display | Arduino Step By Step Course - RJT582 Wire a 74HC595 shift register to a 2-digit 7-segment display with Arduino. Full code and multiplexing logic to count 0-99 using only 3 pins. https://www.youtube.com/embed/pJPdH7mOUzk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=583 2026-08-26 https://robojax.com/images/video_thumbs/432_4aCgHNJl9kY.jpg Lesson 25: HT16K33 4 digit display | Arduino Step By Step Course - RJT583 Wire and program the HT16K33 4-digit display with Arduino to show integers, decimals, and hex values. Step-by-step guide for your projects. https://www.youtube.com/embed/4aCgHNJl9kY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=584 2026-08-26 https://robojax.com/images/video_thumbs/663_Y97gYFtaIuQ.jpg Lesson 1: What is Arduino? Types of Arduino Boards and SunFounder Kit | SunFounder Robojax - RJT584 Explore what Arduino is, types of Arduino boards, and the SunFounder 3-in-1 kit components. Ideal for beginners starting with Arduino Uno. https://www.youtube.com/embed/Y97gYFtaIuQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=585 2026-08-26 https://robojax.com/images/video_thumbs/664_9wc37PhVDis.jpg Lesson 2: Getting Arduino Software and using Documentation for SunFounder Arduino Kit - RJT585 Download and install Arduino IDE for SunFounder Arduino Kit. Wire Arduino Uno, use documentation, and run analogRead examples on the Serial Monitor. https://www.youtube.com/embed/9wc37PhVDis?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=586 2026-08-26 https://robojax.com/images/video_thumbs/665_X8OJjMIHCrw.jpg Lesson 3: Project LED Blink, What is Breadboard, LED and Resistor Using SunFounder Kit- RJT586 Wire an LED and 220 Ohm resistor on a breadboard with Arduino Uno, then program the LED Blink project using pinMode and digitalWrite in setup() and loop(). https://www.youtube.com/embed/X8OJjMIHCrw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=587 2026-08-26 https://robojax.com/images/video_thumbs/666_rJiSo6sr1hA.jpg Lesson 4: What are Binary, Decimal, Hexadecimal and Octal Number, Arduino Serial Monitor - RJT587 Learn binary, decimal, hexadecimal, and octal number systems for Arduino. Use the Serial Monitor to print and read data with example code for ESP32 and Arduino boards. https://www.youtube.com/embed/rJiSo6sr1hA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=588 2026-08-26 https://robojax.com/images/video_thumbs/667_xi9Hegk9M9k.jpg Lesson 5: Introduction to Arduino Data Types SunFounder Learning Kit - RJT588 Explore Arduino data types: integers, floats, characters, strings. Use SunFounder kit to code examples with binary and hex. See Serial Monitor output at 9600 baud. https://www.youtube.com/embed/xi9Hegk9M9k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=589 2026-08-26 https://robojax.com/images/video_thumbs/668_z169fReTLfY.jpg Lesson 6: Buzzer, Driver Wheel and mini Water Pump using Arduino SunFounder Kit- RJT589 Wire and program an active buzzer, L298N motor driver, DC motor, and mini water pump with Arduino SunFounder Kit. Step-by-step wiring and code examples. https://www.youtube.com/embed/z169fReTLfY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=590 2026-08-26 https://robojax.com/images/video_thumbs/669_yyJrqFKn-X4.jpg Lesson 7: Digital Read Push button, detecting magnetic field SunFounder Kit - RJT590 Wire a push button and reed switch to Arduino using DigitalRead. Learn INPUT_PULLUP to detect magnetic fields without external resistors in this Robojax lesson. https://www.youtube.com/embed/yyJrqFKn-X4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=591 2026-08-26 https://robojax.com/images/video_thumbs/670_oo0v3wWbNIE.jpg Lesson 8: AnalogWrite LED Fade, for loop, while loop and do while loops - RJT591 Use Arduino AnalogWrite PWM to fade an LED with for, while, and do-while loops. Wire an LED to an Arduino board and program step-by-step fading from 0 to 255. https://www.youtube.com/embed/oo0v3wWbNIE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=592 2026-08-26 https://robojax.com/images/video_thumbs/671_Y9_PgvgfOIc.jpg Lesson 9: Reading Voltage Using Arduino, Potentiometer AnalogRead SunFounder Kit- RJT592 Measure DC voltage with Arduino using a potentiometer and AnalogRead. Explore ADC resolution, wiring, and five code methods to display voltage values. https://www.youtube.com/embed/Y9_PgvgfOIc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=593 2026-08-26 https://robojax.com/images/video_thumbs/672_GbKZ9W-xyvE.jpg Lesson 10: Conditional Statement in Arduino and Using Array - RJT593 Learn IF, ELSE, ELSE IF conditional statements and arrays in Arduino. Build four LED projects to see how arrays simplify code. Step-by-step for beginners. https://www.youtube.com/embed/GbKZ9W-xyvE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=595 2026-08-26 https://robojax.com/images/video_thumbs/674_JLF7FQeVlkY.jpg Lesson 12: Using Arduino Programming function and switch | SunFounder Robojax - RJT595 Learn Arduino functions and switch statement with 7 hands-on examples. Wire and program your board to master C++ control flow for efficient sketches. https://www.youtube.com/embed/JLF7FQeVlkY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=596 2026-08-26 https://robojax.com/images/video_thumbs/675_-3diSIK_iAU.jpg Lesson 13: Using XY Joystick with Arduino and turning a buzzer with joystick Motion - RJT596 Wire an XY joystick to Arduino and program it to turn a buzzer on when X>600 and Y https://www.youtube.com/embed/-3diSIK_iAU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=597 2026-08-26 https://robojax.com/images/video_thumbs/676_lqgzQohNiIM.jpg Lesson 14: Arduino Millis (no delay) and map functions | SunFounder Robojax - RJT597 Learn to use Arduino millis() for non-blocking timing and map() to scale values like LED brightness or motor speed. Wire and program with SunFounder Robojax. https://www.youtube.com/embed/lqgzQohNiIM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=598 2026-08-26 https://robojax.com/images/video_thumbs/677_3N2RkTXP5mA.jpg Lesson 15: Using Soil Moisture Sensor with Arduino SunFounder Kit - RJT598 Wire SunFounder soil moisture sensor to Arduino, read wet/dry soil levels, and trigger actions when soil is too dry. Complete code and wiring explained. https://www.youtube.com/embed/3N2RkTXP5mA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=599 2026-08-26 https://robojax.com/images/video_thumbs/678_yXpjd279T6g.jpg Lesson 16: Detecting Obstacle Using Infrared Obstacle Avoidance Sensor using SunFounder Kit - RJT599 Wire an Infrared Obstacle Avoidance Sensor to an Arduino and program it to trigger a buzzer when an obstacle is detected. Adjust sensor sensitivity for range. https://www.youtube.com/embed/yXpjd279T6g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=600 2026-08-26 https://robojax.com/images/video_thumbs/679_N_L11m1v_yk.jpg Lesson 17: How to interrupt a delay in Arduino and Light Dependant Resistor LDR- RJT600 Interrupt a delay in Arduino and use an LDR to measure light intensity. Wire an LDR and buzzer, test with a multimeter, and program day/night detection with code examples. https://www.youtube.com/embed/N_L11m1v_yk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=601 2026-08-26 https://robojax.com/images/video_thumbs/680_KAt1WUWpHLQ.jpg Lesson 18/31: Using Servo Motor with Arduino SunFounder's Arduino Kit Wire and program a servo motor with Arduino. See how to adjust the servo's angle by changing the code to move it to specified positions. https://www.youtube.com/embed/KAt1WUWpHLQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=602 2026-08-26 https://robojax.com/images/video_thumbs/681_zTxcKMoP05U.jpg Lesson 19/31: Measure Distance Using Ultrasonic Sensor with Arduino | SunFounder Robojax Wire an HC-SR04 ultrasonic sensor to Arduino and program it to measure distance in centimeters. Step-by-step wiring, library install, and code walkthrough. https://www.youtube.com/embed/zTxcKMoP05U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=604 2026-08-26 https://robojax.com/images/video_thumbs/683_EAlqaVy8fYY.jpg Lesson 21/31: Using Infrared Remote Control with Arduino | SunFounder Robojax Wire an IR receiver and transmitter to Arduino, install the IRremote library, and program actions like turning a buzzer on when you press a key on the remote. See code and wiring diagrams. https://www.youtube.com/embed/EAlqaVy8fYY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=605 2026-08-26 https://robojax.com/images/video_thumbs/684_3qoGAYh0lbc.jpg Lesson 22/31: Using Seven Segment Display with Arduino and Electronic Dice | SunFounder Robojax Build a digital counter and electronic dice with a seven-segment display and Arduino. Complete wiring diagrams and code for both projects. https://www.youtube.com/embed/3qoGAYh0lbc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=606 2026-08-26 https://robojax.com/images/video_thumbs/685_OgYb53HWPAo.jpg Lesson 23/31: Smart Car Part 1: SunFounder Smart Car Assembly and DC Motor Full Bridge Explained Assemble SunFounder Smart Car with Arduino, wire L298N motor driver, and test DC motor full-bridge and half-bridge operation for basic movement. https://www.youtube.com/embed/OgYb53HWPAo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=607 2026-08-26 https://robojax.com/images/video_thumbs/686_QzcUig2L3dM.jpg Lesson 24/31: Smart Car Part 2: Moving Forward, Reverse, left and right and Controlling Speed of Car Program SunFounder Smart Car with Arduino to move forward, reverse, turn left/right, and control speed. Full wiring schematic and code explanation included. https://www.youtube.com/embed/QzcUig2L3dM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=608 2026-08-26 https://robojax.com/images/video_thumbs/687_XEObTOE8JM8.jpg Lesson 25/31: Car-3 Smart Car Avoids Obstacle Using Infrared Sensors | SunFounder Robojax Wire and program IR obstacle avoidance sensors on SunFounder Smart Car with Arduino. Detect objects and make the car avoid or stop autonomously. https://www.youtube.com/embed/XEObTOE8JM8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=609 2026-08-26 https://robojax.com/images/video_thumbs/688_uLBmRvaemxA.jpg Lesson 26/31: Smart Car Part 4 : Avoiding Obstacle Using Ultrasonic Sensor | SunFounder Robojax Wire an ultrasonic sensor to a SunFounder smart car and program it to avoid obstacles: move forward over 25cm, reverse at 2-10cm, stop under 25cm. Full code and wiring explained. https://www.youtube.com/embed/uLBmRvaemxA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=610 2026-08-26 https://robojax.com/images/video_thumbs/689_mcbJlE7-8ro.jpg Lesson 27/31: Car-5 SunFounder Smart Car Follows Your Hand using Arduino | Robojax Program SunFounder Smart Car to follow your hand using Arduino, ultrasonic distance sensor, and IR obstacle avoidance sensors. Full code explanation and demo. https://www.youtube.com/embed/mcbJlE7-8ro?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=611 2026-08-26 https://robojax.com/images/video_thumbs/690_IyninXUcsn0.jpg Lesson 28/31: Car-6 SunFounder self Driving Arduino car using | Robojax Build a SunFounder self-driving Arduino car that avoids obstacles by moving back-left and back-right. Code logic explained via serial monitor and live demo. https://www.youtube.com/embed/IyninXUcsn0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=612 2026-08-26 https://robojax.com/images/video_thumbs/691_PxvORzOhFjE.jpg Lesson 29/31: Car-7 Controlling SunFounder Smart Car using Remote Controller | Robojax Control SunFounder Smart Car with IR remote using Arduino. Learn key functions, wheel movements for rotation, wiring, and complete code in this lesson. https://www.youtube.com/embed/PxvORzOhFjE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=613 2026-08-26 https://robojax.com/images/video_thumbs/692_Cp2rD5RkYug.jpg Lesson 30/31: Car-8 Line Tracking by Smart Car from SunFounder Arduino Kit | Robojax Wire and program the SunFounder Smart Car with Arduino to follow a line using the line tracking sensor and motor driver. Build an autonomous line-following car with this Robojax lesson. https://www.youtube.com/embed/Cp2rD5RkYug?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=614 2026-08-26 https://robojax.com/images/video_thumbs/693_qE1bkgziGXg.jpg Lesson 31/31: Measure Temperature and Humidity Over Wi-Fi using DHT11 and ESP01 SunFounder Kit Wire DHT11 or DHT22 to ESP8266 ESP-01 to measure temperature and humidity over Wi-Fi. Program with Arduino IDE and view data on your phone or computer screen. https://www.youtube.com/embed/qE1bkgziGXg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=615 2026-08-26 https://robojax.com/images/video_thumbs/694_u_21yNqd03I.jpg Arduino UNO and Mega Windows 7, 8, 10 USB driver Solved Fix Arduino UNO USB driver issue on Windows 7, 10, 11. Install CH340 driver for clone boards using 7-Zip and Device Manager. Get your board recognized as COM port. https://www.youtube.com/embed/u_21yNqd03I?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=616 2026-08-26 https://robojax.com/images/video_thumbs/701_rOVVl9EI-So.jpg 13 Miles 20km with NO WiFi? How LoRa Sent Voltage Across Crazy Distances! (Heltec WiFi LoRa 32 V3) Build a 13-mile off-grid voltage monitor using two Heltec WiFi LoRa 32 V3 modules. Wire a voltage divider, program with Arduino IDE, and transmit readings via LoRa. https://www.youtube.com/embed/rOVVl9EI-So?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=617 2026-08-26 https://robojax.com/images/video_thumbs/695_lhLQqG5H8_M.jpg Turn On a Device from 13 mile 21km Away – The Ultimate Off-Grid LoRa Project with WiFi LoRa 32! Build a secure long-range relay controller with Heltec WiFi LoRa32 V3 and Robojax_HeltecLoRa32 library. Trigger devices up to 21 km away via encrypted LoRa. https://www.youtube.com/embed/lhLQqG5H8_M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=618 2026-08-26 https://robojax.com/images/video_thumbs/696_-YWocAllrbA.jpg Remote Door alert using Heltec WiFi LoRa 32 V3 and Meshnology N32 Build a remote door alert system using Heltec WiFi LoRa 32 V3 and AES-encrypted LoRa to monitor doors up to 13 miles away. Wire magnetic switch to GPIO0, receiver triggers GPIO4. https://www.youtube.com/embed/-YWocAllrbA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=619 2026-08-26 https://robojax.com/images/video_thumbs/697_fsLxbRaqsaE.jpg ESP32 Tutorial 1/55 - Introduction to SunFounder's ESP32 IoT Learning kit Software and Arduino IDE Get started with SunFounder's ESP32 IoT Learning Kit using Arduino IDE. Setup ESP32 board support, connect peripherals, and program IoT projects with Wi-Fi and Bluetooth. https://www.youtube.com/embed/fsLxbRaqsaE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=620 2026-08-26 https://robojax.com/images/video_thumbs/698_vBlmp0wlfns.jpg ESP32 Tutorial 2/55 - What's ESP32, Camera Extension Board, unboxing SunFounder's ESP32 IoT kit Unbox SunFounder's ESP32 IoT Kit: explore the ESP32 dual-core Wi-Fi/Bluetooth board, camera expansion, micro SD slot, and 18650 battery for smart home and IoT projects. https://www.youtube.com/embed/vBlmp0wlfns?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=621 2026-08-26 https://robojax.com/images/video_thumbs/769_jTJ-JL2gEuQ.jpg E621 ESP32 Tutorial 3/55 - Resistor, LED, Breadboard Project: Hello LED -ESP32 IoT Learning kit Wire an LED and 220-ohm resistor to an ESP32 and program it to blink using Arduino IDE. Step-by-step guide for your first IoT project. https://www.youtube.com/embed/jTJ-JL2gEuQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=623 2026-08-26 https://robojax.com/images/video_thumbs/791_NSjehPneFVI.jpg Course Lesson 1 of 10: Raspberry Pi Pico 4WD Smart Car Kit from SunFounder by Robojax Start building the SunFounder Raspberry Pi Pico 4WD Smart Car Kit. This lesson introduces the course, hardware, and features like motor control, lights, speed display, and app control. https://www.youtube.com/embed/NSjehPneFVI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=624 2026-08-26 https://robojax.com/images/video_thumbs/790_CUhCpVFpuZ8.jpg Course Lesson 2 of 10: Basic Python to drive Raspberry Pi Pico 4WD Smart Car Kit Drive a SunFounder Raspberry Pi Pico 4WD Smart Car Kit with Python. Lesson 2 covers 10 core Python topics for controlling motors and sensors on the Pico. https://www.youtube.com/embed/CUhCpVFpuZ8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=625 2026-08-26 https://robojax.com/images/video_thumbs/789_hB6z_S2Mn2k.jpg Course Lesson 3 of 10: Assembling Raspberry Pi Pico 4WD Smart Car Kit from SunFounder by Robojax Assemble the SunFounder Raspberry Pi Pico 4WD Smart Car Kit: mount the Pico, motor driver, motors, battery pack, wheels, and wiring. Step-by-step guide by Robojax. https://www.youtube.com/embed/hB6z_S2Mn2k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=626 2026-08-26 https://robojax.com/images/video_thumbs/788_BNztEUZ54bU.jpg Course Lesson 4 of 10: Raspberry Pi Pico Expansion board for 4WD Smart Car Kit Explore the Raspberry Pi Pico expansion board for the SunFounder 4WD Smart Car Kit. Learn its layout, pin functions, and how it connects motors and sensors in this Robojax lesson. https://www.youtube.com/embed/BNztEUZ54bU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=627 2026-08-26 https://robojax.com/images/video_thumbs/787_YtrS2x4pTJg.jpg Course Lesson 5 of 10: Controlling RGB LED WS2812B Using Raspberry Pi Pico Wire four DC motors and control WS2812B RGB LED on Raspberry Pi Pico expansion board using MicroPython NeoPixel library in this Robojax lesson. https://www.youtube.com/embed/YtrS2x4pTJg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=628 2026-08-26 https://robojax.com/images/video_thumbs/786_mdIEq4dge8g.jpg Course Lesson 6 of 10: Controlling DC Motors using Raspberry Pi Pico 4WD Smart Car Kit Control DC motors on Raspberry Pi Pico 4WD Smart Car Kit using Python. Learn to move forward, backward, turn, and spin by setting pins HIGH/LOW in this lesson. https://www.youtube.com/embed/mdIEq4dge8g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=629 2026-08-26 https://robojax.com/images/video_thumbs/785_z9sm6G5alp8.jpg Lesson 7 of 10: Line Tracking, Cliff Detection Calibrate Greyscale Sensor Raspberry Pi Pico Car Calibrate the grayscale sensor on the Raspberry Pi Pico smart car for line tracking and cliff detection. Wire and program the SunFounder 4WD car to follow lines and avoid edges. https://www.youtube.com/embed/z9sm6G5alp8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=630 2026-08-26 https://robojax.com/images/video_thumbs/784_XpGKuxjP7tY.jpg Course Lesson 8 of 10: Follow Hand project with Raspberry Pi Pico 4WD Smart Car Kit Control a servo motor with Python on the Raspberry Pi Pico and build an object-following smart car using an ultrasonic sensor. Lesson 8 of Robojax's 10-part course. https://www.youtube.com/embed/XpGKuxjP7tY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=631 2026-08-26 https://robojax.com/images/video_thumbs/783_hyFZKBXhAwI.jpg Course Lesson 9 of 10: Obstacle Avoidance using Raspberry Pi Pico 4WD Smart Car Wire and program a Raspberry Pi Pico 4WD smart car to avoid obstacles using a servo-mounted ultrasonic sensor and motor control in Python. https://www.youtube.com/embed/hyFZKBXhAwI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=632 2026-08-26 https://robojax.com/images/video_thumbs/782_irsYH0gzaqQ.jpg Course Lesson 10 of 10: Controlling Raspberry Pi Pico 4WD Smart Car Kit with mobile App Control Raspberry Pi Pico 4WD Smart Car Kit with a mobile app: drive, toggle headlights, and view live speed via Bluetooth in this final Robojax lesson. https://www.youtube.com/embed/irsYH0gzaqQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=633 2026-08-26 https://robojax.com/images/video_thumbs/656_KfAnUgaSDmI.jpg control 28BYJ-48 Stepper motor with hand gesture using Arduino - RJT633 Control a 28BYJ-48 stepper motor with hand gestures using Arduino and a gesture sensor. Wire and program clockwise, counterclockwise, and stop actions. https://www.youtube.com/embed/KfAnUgaSDmI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=634 2026-08-26 https://robojax.com/images/video_thumbs/800_RCtVxZnjPmY.jpg How to setup and use ESP32 Cam with Micro USB WiFi Camera Wire and program an ESP32-CAM with built-in USB to upload code and stream video over Wi-Fi. Enable face detection and control camera via web interface in Arduino IDE. https://www.youtube.com/embed/RCtVxZnjPmY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=635 2026-08-26 https://robojax.com/images/video_thumbs/934_EPynuJ7sasY.jpg Control Servo motor from 13 mile 21km Away – The Ultimate Off-Grid LoRa Project with WiFi LoRa 32! Wire a Heltec WiFi LoRa 32 V3 transmitter with rotary encoder and receiver with SG90 servo. See how AES-encrypted LoRa sends angles over 1.4 km in Arduino. https://www.youtube.com/embed/EPynuJ7sasY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=637 2026-08-26 https://robojax.com/images/video_thumbs/857_YuO0sgZn-wA.jpg Elegoo Smart Robot Car Kit V3: #1 Explained with unboxing | Robojax Unbox the Elegoo Smart Robot Car Kit V3 with Arduino Uno, ultrasonic sensor, and Bluetooth module. See components, wiring, and code for line-following and obstacle avoidance. https://www.youtube.com/embed/YuO0sgZn-wA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=638 2026-08-26 https://robojax.com/images/video_thumbs/848_kYSclDOtFKA.jpg Elegoo Smart Robot Car Kit V3: #2 Assembly step by step-5556 Program the ELEGOO Smart Robot Car V3 with Arduino to move forward, reverse, turn left, and right. Step-by-step code for motor control and Auto_go demo. https://www.youtube.com/embed/kYSclDOtFKA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=639 2026-08-26 https://robojax.com/images/video_thumbs/822_XA8qaMbrQ6Y.jpg YX850 Power Failure Automatic Switching Standby Battery Lithium Battery Module 5V-48V Emergency UPS Wire and test YX-X804 and YX-X50 power-failure modules for 5V-48V emergency UPS backup. See switchover speed, battery protection, and Raspberry Pi use. https://www.youtube.com/embed/XA8qaMbrQ6Y?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=641 2026-08-26 https://robojax.com/images/video_thumbs/935_W9FMmBFljXc.jpg DIY Remote Relay: 13 Mile No-Wi-Fi/No-SIM Heltec LoRa 32 Module Tutorial using Meshnology N35 Build a long-range LoRa remote relay with Heltec WiFi LoRa 32 V3. Wire relay or buzzer, set up Arduino IDE, and control devices up to 15 miles without Wi-Fi or SIM. https://www.youtube.com/embed/W9FMmBFljXc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=642 2026-08-26 https://robojax.com/images/video_thumbs/936_IsOSvrF60J4.jpg Long range Private, off-grid communication using Heltec WiFi LoRa 32 on N33 Build a secure, off-grid LoRa messenger with Heltec WiFi LoRa 32 V3 and rotary encoder keyboard. Send encrypted texts up to 13 miles with Meshnology N33 case and 3000mAh battery. https://www.youtube.com/embed/IsOSvrF60J4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=643 2026-08-26 https://robojax.com/images/video_thumbs/877_vsb2k1etImg.jpg Prolific USB Windows 8.1 and Windows 10 driver issue resolved - Robojax Resolve Prolific USB RS232 PL2303 driver issues on Windows 8.1, 10, 11, and 12 with step-by-step instructions from Robojax. Fix your USB serial connection now. https://www.youtube.com/embed/vsb2k1etImg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=645 2026-08-26 https://robojax.com/images/video_thumbs/640_avjAe_4J-qY.jpg Sony CCD 700TVL FPV metal case camera test - RJT645 Review and test the Sony CCD 700TVL FPV camera with metal case. See wiring, 12V power needs, and video performance for drones and robotics. https://www.youtube.com/embed/avjAe_4J-qY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=652 2026-08-26 https://robojax.com/images/video_thumbs/652_Dg4UNorhqug.jpg How to use LED seven segment display and calculate its resistors value - RJT652 Wire and program a 7-segment display with Arduino. Learn common cathode vs anode, resistor calculation, and segment control to display digits accurately. https://www.youtube.com/embed/Dg4UNorhqug?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=658 2026-08-26 https://robojax.com/images/video_thumbs/662_RjWW4nbUyio.jpg 555 Timer Switch 12V Relay with Adjustable time Test review - RJT658 Wire and program a 555 relay timer module to control AC/DC loads with adjustable delay up to 10 seconds. Includes NE555 12V relay timer wiring and setup. https://www.youtube.com/embed/RjWW4nbUyio?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=659 2026-08-26 https://robojax.com/images/video_thumbs/937_FYHrTWS00n4.jpg MeshPocket Review: The Ultimate Off-Grid LoRa Messenger & Qi2 Power Bank! Review the Heltec Mesh-Pocket, an off-grid LoRa communicator with Meshtastic, Qi2 wireless charging, and a 5000mAh battery bank. See setup and a 1.5 km field test. https://www.youtube.com/embed/FYHrTWS00n4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=660 2026-08-26 https://robojax.com/images/video_thumbs/938_se7zf-E9aaQ.jpg Build Your Own Off-Grid Messaging Network with Heltec WiFi LoRa32 & MeshNology! Build a long-range, off-grid LoRa messenger with Meshtastic on the Heltec WiFi LoRa 32. Wire, flash, and configure the device to send encrypted messages over a mesh network. Includes Meshnology cases and field test at 1.5 km. https://www.youtube.com/embed/se7zf-E9aaQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=668 2026-08-26 https://robojax.com/images/video_thumbs/714_73DJFPa_pnA.jpg ESP32 Tutorial 45- Custom Streamign Server with LED control CAM-3 l SunFounder's ESP32 Learning kit Set up a custom streaming server on ESP32 with SunFounder kit: stream live video to browser and control an LED via web interface. Wire LED to pin 14 with 220 ohm resistor, program in Arduino IDE. https://www.youtube.com/embed/73DJFPa_pnA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=670 2026-08-26 https://robojax.com/images/video_thumbs/713_M9BQweAsHJM.jpg ESP32 Tutorial 48 - Remote Temperature Monitoring and LED control MQTT | SunFounder's ESP32 IoT kit Wire a DHT11 and LED to an ESP32, publish temperature and humidity to Adafruit IO via MQTT, and control the LED from a web dashboard. https://www.youtube.com/embed/M9BQweAsHJM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=671 2026-08-26 https://robojax.com/images/video_thumbs/712_T4DhWNg2Rb8.jpg ESP32 Tutorial 30 - Control Servo Over the web using MQTT using Adafruit IO Service Control a servo motor over the web using ESP32 and MQTT with Adafruit IO. Wire servo to pin 25 and adjust angle via dashboard slider. https://www.youtube.com/embed/T4DhWNg2Rb8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=672 2026-08-26 https://robojax.com/images/video_thumbs/711_-9q1GfGsnr0.jpg ESP32 IoT Tutorial 50 - Control RGB LED from anywhere in the world | SunFounder's ESP32 kit Control an RGB LED from anywhere using ESP32, MQTT, and Adafruit IO. Wire RGB LED to GPIO 27, 26, 25, and program with Arduino IDE for IoT color control. https://www.youtube.com/embed/-9q1GfGsnr0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=673 2026-08-26 https://robojax.com/images/video_thumbs/710_OUgyPXNYg3g.jpg ESP32 Tutorial 49 - Control DC Motor Over The internet using Adafruit IoT | SunFounder's ESP32 kit Control a DC motor over the internet using ESP32 and Adafruit IO MQTT. Wire L293D motor driver, program speed and direction remotely via web interface. https://www.youtube.com/embed/OUgyPXNYg3g?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=674 2026-08-26 https://robojax.com/images/video_thumbs/709_znBiVlgV9JI.jpg ESP32 Tutorial 55 - How to measure 12V, 24V or 100V DC voltage | SunFounder's ESP32 IoT Learning kit Measure 12V, 24V, or 100V DC with an ESP32 using a voltage divider circuit. Wire two resistors to GPIO 35 and read scaled voltage on the serial monitor. https://www.youtube.com/embed/znBiVlgV9JI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=681 2026-08-26 https://robojax.com/images/video_thumbs/724_IoK1KvO2EwI.jpg ESP32 Tutorial 40 - Reading and writing to Micro SD Card | SunFounder's ESP32 IoT Learning kit Wire a micro SD card module to ESP32 and use the SD_MMC library to create, write, and read files. Includes wiring pins and Arduino code for data logging. https://www.youtube.com/embed/IoK1KvO2EwI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=682 2026-08-26 https://robojax.com/images/video_thumbs/723_0nWDw8Sb72w.jpg ESP32 Tutorial 41 - MP3 Player using Micro SD card | SunFounder's ESP32 IoT Learning kit Build an MP3 player with ESP32 and micro SD card. Wire audio amplifier, program AudioGeneratorMP3, and play music through a speaker. Step-by-step guide. https://www.youtube.com/embed/0nWDw8Sb72w?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=683 2026-08-26 https://robojax.com/images/video_thumbs/722_B73KTaBaqhs.jpg ESP32 Tutorial 43 - IoT Internet Weather Station | SunFounder's ESP32 IoT Learning kit Build an IoT weather station with ESP32 and LCD1602. Wire I2C LCD, fetch OpenWeatherMap API data, display temperature and humidity every 10 seconds. https://www.youtube.com/embed/B73KTaBaqhs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=684 2026-08-26 https://robojax.com/images/video_thumbs/721_DFznGiD61g4.jpg ESP32 Tutorial 47 - WS2812 CheerLights using MQTT over Internet | SunFounder's ESP32 IoT kit Wire an ESP32 to a WS2812 LED strip and program it to sync colors via MQTT using the CheerLights broker. Step-by-step wiring and code for IoT lighting. https://www.youtube.com/embed/DFznGiD61g4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=685 2026-08-26 https://robojax.com/images/video_thumbs/720_xEqmxMiF-E8.jpg ESP32 Tutorial 52 - WS2812 CheerLights MQTT Global Sync with LCD | SunFounder ESP32 IoT kit Wire an ESP32 to a WS2812 LED strip and LCD, then program it to sync colors globally via MQTT CheerLights and display color updates on the LCD. https://www.youtube.com/embed/xEqmxMiF-E8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=686 2026-08-26 https://robojax.com/images/video_thumbs/719_0KnuNqfiVug.jpg ESP32 Tutorial 53 - Build an LCD Internet Clock | SunFounder's ESP32 IoT Learning kit Build an ESP32 LCD internet clock using NTP. Wire a 20x4 I2C LCD to ESP32, program Wi-Fi sync, and display time, date, and day in 12/24-hour format. https://www.youtube.com/embed/0KnuNqfiVug?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=687 2026-08-26 https://robojax.com/images/video_thumbs/718_J_UFHk_T9aE.jpg ESP32 Tutorial 54 - Set WS2812 LED Strip Color over Wifi | SunFounder's ESP32 IoT Learning kit Control WS2812 LED strip color over Wi-Fi with ESP32. Wire to GPIO 13, use color picker web interface, and program with Adafruit NeoPixel library. https://www.youtube.com/embed/J_UFHk_T9aE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=688 2026-08-26 https://robojax.com/images/video_thumbs/717_XwTCfnHDASg.jpg ESP32 Tutorial 46 - Remote Temperature Monitoring using HiveMQ MQTT | SunFounder's ESP32 kit Build a remote temperature monitoring system with ESP32, NTC thermistor, and HiveMQ MQTT. Wire components, program with PubSubClient, and control an LED via web interface. https://www.youtube.com/embed/XwTCfnHDASg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=689 2026-08-26 https://robojax.com/images/video_thumbs/716_1Sjx9tDOF-k.jpg ESP32 Tutorial 42 - Taking Photo with Camera save on Micro SD CAM-1 | SunFounder's ESP32 kit Wire an OV2640 camera and micro SD card to an ESP32 to capture and save JPEG photos. Step-by-step code and wiring for SunFounder's ESP32 kit. https://www.youtube.com/embed/1Sjx9tDOF-k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=690 2026-08-26 https://robojax.com/images/video_thumbs/715_TSIO1mQXn4U.jpg ESP32 Tutorial 44 - ESP32 Camera Web Server Video Stream Over Wifi CAM-2 | SunFounder's ESP32 kit Build an ESP32 weather station with camera: stream video over Wi-Fi and display temperature/humidity on a 20x4 LCD. Wire ESP32-CAM, code in Arduino IDE. https://www.youtube.com/embed/TSIO1mQXn4U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=691 2026-08-26 https://robojax.com/images/video_thumbs/734_VRzX0PUZbLM.jpg ESP32 Tutorial 31 - Project LED Strip with Obstacle Avoidance | SunFounder's ESP32 IoT Learning kit Wire an ESP32, WS2812 LED strip, and infrared obstacle avoidance sensor to build a project that changes LED direction and color when an obstacle is detected. Includes wiring and code. https://www.youtube.com/embed/VRzX0PUZbLM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=693 2026-08-26 https://robojax.com/images/video_thumbs/732_9mpHQWvZ0WI.jpg ESP32 Tutorial 33 - Digtial Dice using using SunFounder's ESP32 IoT Learning kit Build a digital dice with ESP32, 74HC595 shift register, and seven-segment display. Wire and program a button to roll numbers 1-6 in Arduino IDE. https://www.youtube.com/embed/9mpHQWvZ0WI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=694 2026-08-26 https://robojax.com/images/video_thumbs/731_a62-5Kc6JU0.jpg Arduino Tutorial 34 - Color gradient with RGB LED and Knob | SunFounder's ESP32 IoT Learning kit Wire an RGB LED and potentiometer to an ESP32 to create a color gradient. This tutorial covers common anode wiring, PWM control, and Arduino code for smooth color transitions. https://www.youtube.com/embed/a62-5Kc6JU0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=696 2026-08-26 https://robojax.com/images/video_thumbs/730_K_4aX5oH3zg.jpg ESP32 Tutorial 32 - Car Reverse Range Waring with LCD and buzzer | SunFounder's IoT Learning kit Build a car reversing aid with ESP32, ultrasonic sensor, LCD, and buzzer. Wire components and program distance alerts with changing beep frequency. https://www.youtube.com/embed/K_4aX5oH3zg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=697 2026-08-26 https://robojax.com/images/video_thumbs/729_SdgvQlIllPA.jpg ESP32 Project 35 - Plant Monitor, soil, temperature and light | SunFounder's ESP32 IoT Learning kit Build a plant monitor with ESP32, DHT11, soil moisture sensor, LDR, and LCD. Wire and program to display temperature, humidity, moisture, and light, with button-controlled water pump. https://www.youtube.com/embed/SdgvQlIllPA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=698 2026-08-26 https://robojax.com/images/video_thumbs/728_cvq8t23Oe2A.jpg ESP32 Tutorial 36 - Guessing Number Game | SunFounder's ESP32 IoT Learning kit Build an ESP32 guessing number game with IR remote and LCD. Wire IR receiver to pin 14, LCD to I2C pins 21/22, and program random number hints. https://www.youtube.com/embed/cvq8t23Oe2A?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=700 2026-08-26 https://robojax.com/images/video_thumbs/727_kA_IJtytxbs.jpg ESP32 Tutorial 37 - Using Bluetooth App with ESP32 BLE | SunFounder's ESP32 IoT Learning kit Send and receive messages between ESP32 and LightBlue app over BLE. Wire ESP32 via USB, program Bluetooth server, and view text on serial monitor. https://www.youtube.com/embed/kA_IJtytxbs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=701 2026-08-26 https://robojax.com/images/video_thumbs/726_ptcTdG0V_DY.jpg ESP32 Tutorial 38 - Controling RGB LED from your mobile phone | SunFounder's ESP32 IoT Learning kit Control an RGB LED with your mobile phone using an ESP32 and Bluetooth. Wire the LED to GPIO 27, 26, 25 and program it to change colors via BLE commands. https://www.youtube.com/embed/ptcTdG0V_DY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=702 2026-08-26 https://robojax.com/images/video_thumbs/725_8_g_m9qkfp4.jpg Tutorial 39 - Using ESP32 as Bluetooth Music Player | SunFounder's ESP32 IoT Learning kit Wire ESP32 as a Bluetooth music player using A2DP sink and built-in DAC. Connect GPIO25 for audio, upload code, and stream from your phone. https://www.youtube.com/embed/8_g_m9qkfp4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=703 2026-08-26 https://robojax.com/images/video_thumbs/744_BSPkTJqxnVc.jpg ESP32 Tutorial 20 - Line Tracking Module | SunFounder's ESP32 IoT Learning kit Wire a TCRT5000 line tracking module to an ESP32 to detect black lines on white surfaces, with a buzzer on GPIO 27. Includes wiring, code, and demo. https://www.youtube.com/embed/BSPkTJqxnVc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=704 2026-08-26 https://robojax.com/images/video_thumbs/743_h_DWTRgqb0Q.jpg ESP32 Tutorial 21 - Detecting Human with PIR Motion Sensor | SunFounder's ESP32 IoT Learning kit Wire a PIR motion sensor to an ESP32 and program it to light an LED when human motion is detected. Includes wiring, code, and calibration tips. https://www.youtube.com/embed/h_DWTRgqb0Q?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=705 2026-08-26 https://robojax.com/images/video_thumbs/742_sXWlnOHAo6M.jpg ESP32 Tutorial 22 - Feeling The light using LED Arduino | SunFounder's ESP32 IoT Learning kit Wire an LDR with ESP32 to read light intensity via analog pin 35. See code and voltage divider setup for light sensing projects. https://www.youtube.com/embed/sXWlnOHAo6M?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=706 2026-08-26 https://robojax.com/images/video_thumbs/741_QSYTEytRKHI.jpg ESP32 Tutorial 23 - Reading Voltage of potentiometer using ESP32 | SunFounder's ESP32 IoT kit Wire a potentiometer to ESP32 pin 35 and LED to pin 26, read voltage with analogReadMilliVolts, and fade LED via PWM in this SunFounder IoT kit tutorial. https://www.youtube.com/embed/QSYTEytRKHI?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=707 2026-08-26 https://robojax.com/images/video_thumbs/740_zJh-gWY0DmE.jpg Arduino Tutorial 25 - Measuring Temperature using NTC & LCD | SunFounder's ESP32 IoT Learning kit Measure temperature with an NTC thermistor and display it on an LCD using ESP32. Wire the sensor, read analog values, and show Celsius and Fahrenheit readings. https://www.youtube.com/embed/zJh-gWY0DmE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=708 2026-08-26 https://robojax.com/images/video_thumbs/739_MW-7a5Z0IT0.jpg ESP32 Project 24 - Measuring Soil Mositure for Irrigation | SunFounder's ESP32 IoT Learning kit Wire a capacitive soil moisture sensor to SunFounder ESP32, read analog pin 35, and trigger a buzzer on pin 13 when soil is dry for automated irrigation. https://www.youtube.com/embed/MW-7a5Z0IT0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=709 2026-08-26 https://robojax.com/images/video_thumbs/738_ViDQ11bsvSw.jpg Arduino Tutorial 26 - Using Joystick with Arduino Taking Action | SunFounder's ESP32 IoT kit Wire an XY joystick and buzzer to ESP32, read analog X/Y and button values, and trigger the buzzer based on joystick position with Arduino code. https://www.youtube.com/embed/ViDQ11bsvSw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=710 2026-08-26 https://robojax.com/images/video_thumbs/737_g3_Tj1_x2_U.jpg Arduino Tutorial 27 - Measuring Distanc with Ultrasonic Sensor | SunFounder's ESP32 IoT Learning kit Wire HC-SR04 ultrasonic sensor to ESP32, measure distance in cm, and trigger a buzzer when objects are closer than 20 cm. Includes code and wiring guide. https://www.youtube.com/embed/g3_Tj1_x2_U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=711 2026-08-26 https://robojax.com/images/video_thumbs/736_qRUFZX4eDJg.jpg Arduino Tutorial 28 - DHT11 Temperature Sensor with LCD | SunFounder's ESP32 IoT Learning kit Wire DHT11 temperature and humidity sensor to ESP32, display readings on LCD, and add a buzzer alert when temperature exceeds 30°C. Step-by-step guide with code. https://www.youtube.com/embed/qRUFZX4eDJg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=712 2026-08-26 https://robojax.com/images/video_thumbs/735_VxFZfp61Ci8.jpg Arduino Tutorial 29 - Reading IR remote key press with ESP32| SunFounder's ESP32 IoT Learning kit Wire a Sharp GP1UXC41 IR receiver to ESP32 GPIO 14, decode remote key presses with IRremoteESP8266 library, and trigger a buzzer on specific keys. https://www.youtube.com/embed/VxFZfp61Ci8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=713 2026-08-26 https://robojax.com/images/video_thumbs/754_QLnM1aNMtb0.jpg ESP32 Tutorial 11 - Using LCD1602 LCD2004 with ESP32 -SunFounder's ESP32 IoT Learning kit Wire LCD1602 or LCD2004 to ESP32 via I2C, adjust contrast, and display text with Arduino code. Includes wiring, library setup, and I2C address tips. https://www.youtube.com/embed/QLnM1aNMtb0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=714 2026-08-26 https://robojax.com/images/video_thumbs/753_ei_SIh1xH1U.jpg ESP32 Tutorial 15 - DC Motor Speed Control with ESP32 L293D | SunFounder's ESP32 IoT Learning kit Wire an ESP32 to an L293D motor driver to control DC motor speed and direction. See the schematic, Arduino code, and demo for this IoT project. https://www.youtube.com/embed/ei_SIh1xH1U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=715 2026-08-26 https://robojax.com/images/video_thumbs/752_CdYeKW2N-nY.jpg ESP32 Tutorial 12 - WS2812 RGB Srip 4 Project with SunFounder's ESP32 IoT Learning kit Wire a WS2812 LED strip to an ESP32 and program it with the Adafruit NeoPixel library to create a running light effect. Step-by-step guide with code and wiring instructions. https://www.youtube.com/embed/CdYeKW2N-nY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=717 2026-08-26 https://robojax.com/images/video_thumbs/750_TcH8Bx9yC7Q.jpg ESP32 Tutorial 13 - Arduino Beep with Active Buzzer | SunFounder's ESP32 IoT Learning kit Wire an active buzzer to an ESP32 with an S8050 transistor and 1k resistor. Arduino code beeps GPIO 14. Step-by-step wiring and program for IoT projects. https://www.youtube.com/embed/TcH8Bx9yC7Q?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=718 2026-08-26 https://robojax.com/images/video_thumbs/749_0IFBAF6gSAo.jpg ESP32 Tutorial 14 - Playing Custom Music Note Using SunFounder ESP32 IoT Learning kit Wire a passive buzzer and 2N8050 transistor to SunFounder ESP32, then program GPIO 14 to play custom musical notes with Arduino code. https://www.youtube.com/embed/0IFBAF6gSAo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=719 2026-08-26 https://robojax.com/images/video_thumbs/748_64z83Mm-Kpc.jpg ESP32 Tutorial 16 - Mini Water Pump using ESP32 and L293D | SunFounder's ESP32 IoT Learning kit Wire a 5V water pump to ESP32 via L293D motor driver. See wiring for GPIO 13/14 and code to cycle pump on/off for IoT projects. https://www.youtube.com/embed/64z83Mm-Kpc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=720 2026-08-26 https://robojax.com/images/video_thumbs/747_qGcOaNlyV0Y.jpg ESP32 Tutorial 17 - Controlling Servo Motor using ESP32 and Potentiometer -ESP32 IoT Learning kit Wire an SG90 servo and potentiometer to an ESP32, then program it to control the servo angle smoothly. Includes wiring, code, and demo. https://www.youtube.com/embed/qGcOaNlyV0Y?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=721 2026-08-26 https://robojax.com/images/video_thumbs/746_zbBTWvGywJg.jpg ESP32 Tutorial 18 - Detecting Tilt using ESP32 | SunFounder's ESP32 IoT Learning kit Wire a tilt switch and LED to an ESP32 to detect tilt. This guide shows the circuit, Arduino code, and how to turn the LED on when upright and off when tilted. https://www.youtube.com/embed/zbBTWvGywJg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=722 2026-08-26 https://robojax.com/images/video_thumbs/745_yMa2FOhpesU.jpg ESP32 Tutorial 19 - Detecting Obstacle using Infrared Sensor | SunFounder's ESP32 IoT Learning kit Wire an infrared obstacle avoidance sensor to ESP32, read its digital output, and trigger a buzzer when an obstacle is detected. Includes code and wiring. https://www.youtube.com/embed/yMa2FOhpesU?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=723 2026-08-26 https://robojax.com/images/video_thumbs/764_7gh1OAu5vdo.jpg ESP32 Tutorial 7 - Using Array with ESP32 Arduino Programming-SunFounder's ESP32 IoT Learning kit Wire ESP32 to 74HC595 shift register and program arrays in Arduino to create a walking light effect. Step-by-step code and wiring guide. https://www.youtube.com/embed/7gh1OAu5vdo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=724 2026-08-26 https://robojax.com/images/video_thumbs/763__tLesIbpB8U.jpg ESP32 Tutorial 9 - Using Push button to Toggle LED, Push ON, Push OFF -SunFounder ESP32 IoT kit Wire a push button to GPIO 14 and an LED to GPIO 26 on an ESP32 to toggle the LED on and off. Includes Arduino code and wiring instructions from the SunFounder ESP32 IoT kit. https://www.youtube.com/embed/_tLesIbpB8U?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=732 2026-08-26 https://robojax.com/images/video_thumbs/755_6VLU5ODueL0.jpg ESP32 Tutorial 10 - Digital counter using Seven Segment Display 74HC595 -ESP32 IoT Learning kit Build a digital counter with ESP32, 74HC595 shift register, and seven-segment display. Wire and program to count 0-9 and display letters. https://www.youtube.com/embed/6VLU5ODueL0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=735 2026-08-26 https://robojax.com/images/video_thumbs/772_qUEcL3A2Gho.jpg SMD5730 3W 7W 14W 12W 18W 24W 36W SMD LED AC driver Test review Light Board Wire and test SMD5730 LED boards with AC drivers (7W-36W). Learn voltage, current, series/parallel wiring, and safe soldering for optimal LED performance. https://www.youtube.com/embed/qUEcL3A2Gho?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=738 2026-08-26 https://robojax.com/images/video_thumbs/768_O_tk0itHccs.jpg ESP32 Tutorial 5 - LED Fade, control brightness of an LED -ESP32 IoT Learning kit Wire an LED to ESP32 GPIO 26 and use PWM to fade its brightness. Arduino code with ledcWrite and fadeAmount for smooth control. https://www.youtube.com/embed/O_tk0itHccs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=739 2026-08-26 https://robojax.com/images/video_thumbs/767_snmKdaxLPcw.jpg ESP32 Tutorial 4 - Data types Define Variable Int, bool, char, Serial Monitor-ESP32 IoT kit ESP32 tutorial: define int, bool, char variables and print to Serial Monitor. Wire and program your SunFounder IoT kit for data logging and sensor readings. https://www.youtube.com/embed/snmKdaxLPcw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=740 2026-08-26 https://robojax.com/images/video_thumbs/766_fn9GxfaLK7k.jpg ESP32 Tutorial 6 - Using RGB LED Project 2.3 -SunFounder's ESP32 IoT Learning kit Wire a common anode RGB LED to ESP32 GPIO 27, 26, 25 with 220Ω resistors. Program PWM to mix red, green, blue colors using ledcAttach and setColor. https://www.youtube.com/embed/fn9GxfaLK7k?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=741 2026-08-26 https://robojax.com/images/video_thumbs/765_gH2qnsBqApc.jpg ESP32 Tutorial 8 -Walking Light 74HC595 Shift register -SunFounder's ESP32 IoT Learning kit Wire a 74HC595 shift register to an ESP32 and program it to create a walking light effect. Step-by-step guide from SunFounder's IoT kit. https://www.youtube.com/embed/gH2qnsBqApc?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=752 2026-08-26 https://robojax.com/images/video_thumbs/804_64YBz_F-MKA.jpg How to use W3230 Thermostat Heat and Cold Relay Controller AC DC 12V/24V/120/220V P1 to P8 Wire and program the W3230 thermostat relay controller for AC/DC 12V/24V/110-220V heating and cooling. Set P0-P8, delay start, and temperature correction. https://www.youtube.com/embed/64YBz_F-MKA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=757 2026-08-26 https://robojax.com/images/video_thumbs/797_eqXaqRFAWrA.jpg How to use Mosfet Optocoupled HW-532 to control up to 30V DC Motor Speed or load using Arduino Wire an Arduino to the HW-532 optocoupled MOSFET module (FR120N, LR7843, or D4184) to control a DC motor up to 30V with on/off, PWM speed, and potentiometer control. https://www.youtube.com/embed/eqXaqRFAWrA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=760 2026-08-26 https://robojax.com/images/video_thumbs/814_pqnMCQEih6Q.jpg Lesson 71: Measure distance and display on LCD screen | Arduino Step By Step Course Wire an HC-SR04 ultrasonic sensor and LCD1602 I2C display to an Arduino Uno. Measure distance in cm and inches, show readings on the LCD and serial monitor. https://www.youtube.com/embed/pqnMCQEih6Q?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=777 2026-08-26 https://robojax.com/images/video_thumbs/826_DRIC4wDu878.jpg Lesson 42: Using LM35 Temperature Sensor | Arduino Step By Step Course Wire an LM35 temperature sensor to an Arduino to display Celsius, Fahrenheit, and Kelvin readings. Includes pinout, wiring, and code for accurate temperature measurement. https://www.youtube.com/embed/DRIC4wDu878?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=778 2026-08-26 https://robojax.com/images/video_thumbs/825_yJYXfaU9J34.jpg Lesson 47: Using K-Type MAX6675 as thermostat | Arduino Step By Step Course Build a thermostat with Arduino, MAX6675 K-type thermocouple, and relay. Wire and program a temperature control system for heating or cooling applications. https://www.youtube.com/embed/yJYXfaU9J34?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=781 2026-08-26 https://robojax.com/images/video_thumbs/856_U95hw-ec6nY.jpg Using LCD with Digispark USB to display text | Robojax Wire a 1602 LCD with I2C to a Digispark and display text using Arduino LiquidCrystal library. Find I2C address, connect SDA/SCL, upload code. https://www.youtube.com/embed/U95hw-ec6nY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=782 2026-08-26 https://robojax.com/images/video_thumbs/855_-JD3E7e0RAE.jpg Review of Hi-Link AC Arduino Power Supply DC 3.3V 5V, 12V 5W converter Review Hi-Link AC to DC converter modules for Arduino: test 3.3V, 5V, 12V outputs at 110V/240V, check wiring, isolation, and performance for your projects. https://www.youtube.com/embed/-JD3E7e0RAE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=783 2026-08-26 https://robojax.com/images/video_thumbs/854_NwSlW9Agw30.jpg How to display line numbers in Arduino IDE program Enable line numbers in Arduino IDE to improve code readability and debugging. This software-only tutorial shows how to edit preferences.txt or use IDE 2.x settings. https://www.youtube.com/embed/NwSlW9Agw30?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=785 2026-08-26 https://robojax.com/images/video_thumbs/849_qEpWo5ebpXo.jpg Review of Benewak TFMini Plus LiDar laser 12m distance sensor Wire and program the Benewak TFMini Plus LiDar laser distance sensor with Arduino or Raspberry Pi. Review of 12m range, UART/I2C, and accuracy for robotics projects. https://www.youtube.com/embed/qEpWo5ebpXo?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=791 2026-08-26 https://robojax.com/images/video_thumbs/858_4HWkUrehXbY.jpg How to use I2C Scanner with Digispark to find I2C address | Robojax Scan I2C addresses with Digispark board using Arduino code. Wire SDA to pin 0, SCL to pin 1, and find sensor addresses on serial monitor. https://www.youtube.com/embed/4HWkUrehXbY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=795 2026-08-26 https://robojax.com/images/video_thumbs/946_GUniNz4rsFw.jpg Test review of LM317 DC Voltage regulator module Test the LM317 DC voltage regulator module: wiring, specs, input/output ranges, current limits, and thermal behavior for Arduino and electronics projects. https://www.youtube.com/embed/GUniNz4rsFw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=796 2026-08-26 https://robojax.com/images/video_thumbs/870_mHPqxctmJrs.jpg 16 Channel Relay module 5V relay voltage fixed Fix a 16-channel 5V relay module for Arduino by adding a Schottky diode and rewiring to ensure relays get regulated 5V, preventing damage and improving reliability. https://www.youtube.com/embed/mHPqxctmJrs?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=800 2026-08-26 https://robojax.com/images/video_thumbs/896_xD8wHXDzLkQ.jpg Using DHT11, DHT22 with TM1637 display and Relay to control AC load Build an Arduino temperature controller with DHT11/DHT22 sensor, TM1637 display, and relay to switch AC loads like heaters or fans based on temperature thresholds. https://www.youtube.com/embed/xD8wHXDzLkQ?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=802 2026-08-26 https://robojax.com/images/video_thumbs/889_dt09OkopU6c.jpg Convert PWM to Voltage using IC Station converter (Review and Test ) Review and test the IC Station PWM to voltage converter module. Wire 12-30V input, PWM signal, and get 0-10V output. Includes calibration and linearity testing. https://www.youtube.com/embed/dt09OkopU6c?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=803 2026-08-26 https://robojax.com/images/video_thumbs/888_mcI6y8mozg0.jpg HC-SR04 Ultrasonic Distance Finder LED Display without Arduino Build a standalone HC-SR04 ultrasonic distance finder with the A305 display module, no Arduino needed. Wire 5V power and read distance in centimeters on the LED screen. https://www.youtube.com/embed/mcI6y8mozg0?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=804 2026-08-26 https://robojax.com/images/video_thumbs/913_w-LQdMHYODY.jpg Simple Touch Circuit Turn ON LED or something else Build a simple touch circuit with a 2N2222 or 2N3904 NPN transistor to turn on an LED when you touch a wire. Includes schematic, wiring steps, and theory. https://www.youtube.com/embed/w-LQdMHYODY?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=805 2026-08-26 https://robojax.com/images/video_thumbs/912_qwHMx1vGJSE.jpg Digital clock AT89C2051 DIY Electronics Kit step by step Assembly Assemble a digital clock kit with AT89C2051 microcontroller. Step-by-step wiring guide for seven-segment display, 12MHz crystal, and 5V buzzer. Includes schematic and demo. https://www.youtube.com/embed/qwHMx1vGJSE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=806 2026-08-26 https://robojax.com/images/video_thumbs/909_DDWnQnMacuM.jpg Build AM FM Radio Receiver DIY kit CF210SP Build the CF210SP DIY AM/FM radio receiver kit. Step-by-step guide covers soldering, wiring, and tuning for hobbyists learning radio electronics. https://www.youtube.com/embed/DDWnQnMacuM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=807 2026-08-26 https://robojax.com/images/video_thumbs/901_F4GCXgpPNZg.jpg How to use Prototyping Shield with breadboard for Arduino Wire an Arduino prototyping shield with mini breadboard, built-in LEDs, push button, and extra 5V/GND pins for quick circuit testing and soldered projects. https://www.youtube.com/embed/F4GCXgpPNZg?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=809 2026-08-26 https://robojax.com/images/video_thumbs/937_FYHrTWS00n4.jpg MeshPocket Review: The Ultimate Off-Grid LoRa Messenger & Qi2 Power Bank! Review the Heltec Mesh-Pocket, an off-grid LoRa messenger with Meshtastic, Qi2 wireless charging, and a power bank. See how to flash firmware and test it with other LoRa devices. https://www.youtube.com/embed/FYHrTWS00n4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=811 2026-08-26 https://robojax.com/images/video_thumbs/928_mGs_ys4pYOE.jpg Sony CCD 700TVL FPV Camera Wire and program the Sony CCD 700TVL FPV camera with a Skyzone TS5823 transmitter. See the 3-wire hookup and live demo for clear FPV video output. https://www.youtube.com/embed/mGs_ys4pYOE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=812 2026-08-26 https://robojax.com/images/video_thumbs/918_CU4Tl4xxuh8.jpg Drone Power Distribution board PDB explained Wire and test passive and active drone PDBs for ESCs, flight controllers, and LEDs. See how active PDBs regulate 5V and 12V from a LiPo battery. https://www.youtube.com/embed/CU4Tl4xxuh8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=813 2026-08-26 https://robojax.com/images/video_thumbs/917_KjG6FKCNCbM.jpg CC3D Flight Controller Wiring Connection Explained Wire a CC3D flight controller to ESCs, receiver, and power distribution board. Step-by-step guide for building or repairing multirotor drones. https://www.youtube.com/embed/KjG6FKCNCbM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=814 2026-08-26 https://robojax.com/images/video_thumbs/902_DBRI7ry0Ku8.jpg How to use W1209 Temperature relay controller and program the thermostat Wire and program the W1209 temperature relay controller with a 12V DC supply to control AC loads like heaters or fans. Set heat/cool mode, backlash, and limits for incubators, brewing, and more. https://www.youtube.com/embed/DBRI7ry0Ku8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=815 2026-08-26 https://robojax.com/images/video_thumbs/852_K7O_Vo-NeX4.jpg Review of 600W DC10-60V To 12-80V boost convert with constant current | Robojax Review the 600W DC-DC boost converter 10-60V to 12-80V with constant current. Tested with electronic load, thermal imaging, and component analysis for DIY projects. https://www.youtube.com/embed/K7O_Vo-NeX4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=822 2026-08-26 https://robojax.com/images/video_thumbs/895_XOWtfbq9Stw.jpg Automation XH W1401 Thermostat with Cooling mode and Heating mode Wire and program the Automation XH W1401 thermostat with Arduino for cooling and heating modes. Control HVAC systems with precise temperature settings and relay outputs. https://www.youtube.com/embed/XOWtfbq9Stw?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=824 2026-08-26 https://robojax.com/images/video_thumbs/864_FK-cYR32zGA.jpg Review of AC 100-240V To DC 24V 4A-6A Switching Power Supply Module Review the AC 100-240V to DC 24V 4A-6A switching power supply module. See wiring, specs, and how to power your 24V devices safely. https://www.youtube.com/embed/FK-cYR32zGA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=826 2026-08-26 https://robojax.com/images/video_thumbs/230_fPrPRZlGdvA.jpg Control Servo motor with a Push Button: Move Servo and Return SPB-1 Wire a servo and pushbutton to Arduino. Press the button to rotate the servo from 0 to 180 degrees, release to return to 0. Code and wiring explained. https://www.youtube.com/embed/fPrPRZlGdvA?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=829 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Wire and program an ESP32-S3 RGB LED Matrix to show a moving dot and heart animation. Uses GPIO 14, 64 pixels, Adafruit NeoMatrix library. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=830 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Build a scrolling text banner on the ESP32-S3 RGB LED Matrix using the NeoMatrix library. Change text, color, brightness, and scroll speed in code. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=831 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Control ESP32-S3 RGB LED Matrix text from your phone via web page. Set Wi-Fi SSID, password, and adjust text, color, direction, speed in Arduino IDE. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=832 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Wire and program the ESP32-S3 RGB LED Matrix to move a dot by tilting the board, using the QMI8658C accelerometer and Adafruit NeoMatrix libraries. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=833 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Wire and program the ESP32-S3 RGB LED Matrix with QMI8658C accelerometer to display an arrow that always points up, using Arduino IDE and Adafruit NeoMatrix. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=834 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Build an ESP32-S3 RGB LED Matrix target game using the QMI8658C accelerometer. Tilt the board to move a dot and hit the circle to change color and beep. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=835 2026-08-26 https://robojax.com/images/video_thumbs/944_DXhZsS26To8.jpg $35 USB Sniffing Explained: Capture Mouse & Keyboard Data with Wireshark (Beginner to Advanced) Capture mouse movement and keyboard keystrokes with a USB sniffer and Wireshark. Wire the sniffer inline, filter USB HID packets, and analyze unencrypted data. https://www.youtube.com/embed/DXhZsS26To8?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=836 2026-08-26 https://robojax.com/images/video_thumbs/942_6xIDjU0K51Y.jpg ET853C 3-in-1 2CH 70Mhz Oscilloscope Multimeter Signal Generator 3-In-1 from AV ToolTop Review the AV ToolTop ET853C scope meter: a handheld DMM, 2-channel oscilloscope, and function generator. See wiring, measurements, and specs. https://www.youtube.com/embed/6xIDjU0K51Y?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=837 2026-08-26 https://robojax.com/images/video_thumbs/943_LMKiPE_2Uu4.jpg Review of 2A DC-DC Step up boost converter MT3608 module Review the MT3608 boost converter module: real load tests show practical limits like 3.3V to 5V at 1A, 9V to 12V at 1A, and 12V to 24V at 0.5A. Learn wiring and heat issues. https://www.youtube.com/embed/LMKiPE_2Uu4?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=838 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Build an ESP32-S3 internet clock with an 8x8 RGB NeoMatrix. Connect to Wi-Fi, sync time from NTP, and scroll HH:MM across the display. Includes wiring and code. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=839 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Build an ESP32-S3 RGB NeoMatrix internet clock that scrolls time and date, syncs via NTP, and adjusts brightness for day/night with customizable colors. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=840 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Build an ESP32-S3 RGB NeoMatrix internet clock that syncs time via NTP, scrolls HH:MM on an 8x8 matrix, and auto-adjusts day/night brightness with fixed or cycling colors. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=841 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Test ESP32-S3 with RGB LED matrix to verify RGB vs GRB color order. Wire data pin, set NeoPixel library, upload code and confirm correct colors. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=842 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Build an ESP32-S3 RGB LED matrix internet clock with rainbow color effect. Wire GPIO 14, set Wi-Fi, NTP time, and auto day/night brightness. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=843 2026-08-26 https://robojax.com/images/video_thumbs/807_XEZLyznWmYM.jpg ESP32-S3 RGB LED Matrix Projects (Tilt Game, Text, Arrow, WiFi Demo) Build an ESP32-S3 RGB LED matrix internet clock that syncs NTP time and scrolls HH:MM with random colors for hours, colon, and minutes. Includes Wi-Fi setup, brightness control, and code. https://www.youtube.com/embed/XEZLyznWmYM?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=845 2026-08-26 https://robojax.com/images/video_thumbs/945_aY4YbSlJ8tk.jpg How to use DM-W3002 DC temperature control Wire and program the DM-W3002 W3002 DC temperature controller with 12V/24V power, NTC sensor, and relay to control heaters or coolers. Set thresholds, delays, and tolerance for precise temperature management. https://www.youtube.com/embed/aY4YbSlJ8tk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=849 2026-08-26 https://robojax.com/images/video_thumbs/947_6AL3g3tC_Hk.jpg This $40 ESP32 Board Sees, Hears and Talks Back (AI Projects) Wire and program the Makerfabs MaTouch ESP32-S3 2.8 camera touchscreen to take 3MP photos saved to SD with timestamps from the PCF8563T RTC. Includes Arduino IDE settings and library versions. https://www.youtube.com/embed/6AL3g3tC_Hk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=850 2026-08-26 https://robojax.com/images/video_thumbs/947_6AL3g3tC_Hk.jpg This $40 ESP32 Board Sees, Hears and Talks Back (AI Projects) Run offline face detection on Makerfabs MaTouch ESP32-S3 2.8 camera board using esp-dl models. Wire camera, touch, and speaker, and program with Arduino core 2.0.17. https://www.youtube.com/embed/6AL3g3tC_Hk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=851 2026-08-26 https://robojax.com/images/video_thumbs/947_6AL3g3tC_Hk.jpg This $40 ESP32 Board Sees, Hears and Talks Back (AI Projects) Build a talking AI voice assistant on the Makerfabs MaTouch ESP32-S3 2.8 board. Hold to talk, Azure speech, DeepSeek reasoning, speaker output, chat UI. https://www.youtube.com/embed/6AL3g3tC_Hk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=852 2026-08-26 https://robojax.com/images/video_thumbs/947_6AL3g3tC_Hk.jpg This $40 ESP32 Board Sees, Hears and Talks Back (AI Projects) Build an AI vision camera with Makerfabs MaTouch ESP32-S3 2.8 TFT ST7789V: point it at something, tap a button, and it describes what it sees on screen and speaks it aloud. https://www.youtube.com/embed/6AL3g3tC_Hk?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=853 2026-08-26 https://robojax.com/images/video_thumbs/948__LiiJxeuhtE.jpg Face Recognition With NO Internet — $15 XIAO ESP32-S3 Camera Turn the Seeed Studio XIAO ESP32-S3 Sense into a Wi-Fi webcam: live video, 3 MP photos, time lapse in any browser. Wire and program with Arduino IDE. https://www.youtube.com/embed/_LiiJxeuhtE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=854 2026-08-26 https://robojax.com/images/video_thumbs/948__LiiJxeuhtE.jpg Face Recognition With NO Internet — $15 XIAO ESP32-S3 Camera Build a $15 XIAO ESP32-S3 Sense camera that runs offline face recognition, greets enrolled people by name, and switches a relay. Wire a MAX98357A speaker and program with Arduino IDE 2.0.17. https://www.youtube.com/embed/_LiiJxeuhtE?rel=0 Robojax https://robojax.com/tutorial_view.php?lang=en&id=855 2026-08-26 https://robojax.com/images/video_thumbs/949__-_uMENCrCc.jpg How to setup and use Eachine TX03 3-in-1 FPV Transmitter and Camera Set up and use the Eachine TX03 3-in-1 FPV transmitter and camera. Adjust power (25/50/200mW), select channels and bands, and connect to a receiver for clear video. https://www.youtube.com/embed/_-_uMENCrCc?rel=0 Robojax