Lesson 49: Using L293D with Arduino to control drive a DC Motor
Part 5: DC Motors
In this lesson we learn how to use L293D Motor driver to drive a DC motor using Arduino code. Please watch the video for full details.
- Introduction to L293D chip
- Wiring of L293D Explained
- Code Explained
- Running code demonstration
/*
* Lesson 49: Introduction to L293D Motor driver | Arduino Step By Step Course
* This is the Arduino code L293 DC motor Driver
Using this code you can control a motor to rotate in one direction
Watch the video explaining L293D and this code:https://youtu.be/D4yLsWvZDw4
* *
// Writeen by Ahmad Shamshiri for Robojax Robojax.com on
// on Jan 26, 2019 at 08:01 in Ajax, Ontario, Canada
This code is available at http://robojax.com/course1/?vid=lecture49
with over 100 lectures Free On YouTube Watch it here http://robojax.com/L/?id=338
Get the code for the course: http://robojax.com/L/?id=339
* on Saturday November 24, 2018
* in Ajax, Ontario, Canada
*
* This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.*
* This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#define MOTOR1 2 // define pin 2 as for MOTOR1
#define EN12 3// define pin 3 for EN1,2
/*
* Permission granted to share this code given that this
* note is kept with the code.
* Disclaimer: this code is "AS IS" and for educational purpose only.
*
*/
void setup() {
// L293 Motor Control Code by Robojax.com 2018025
Serial.begin(9600);// setup Serial Monitor to display information
pinMode(MOTOR1, OUTPUT);// define pin as OUTPUT for MOTOR1
pinMode(EN12, OUTPUT);// define pin as OUTPUT for EN12
//digitalWrite(EN12, HIGH);// set EN12 pin HIGH
// L293 Motor Control Code by Robojax.com 2018025
}
void loop() {
// L293 Motor Control Code by Robojax.com 2018025
Serial.println(" Motor 1 ON");
digitalWrite(MOTOR1,HIGH);// turn MOTOR1 ON
analogWrite(EN12, 255);// run motor at (255 PWM value) maximum speed
delay(3000);//for 3 seconds
analogWrite(EN12, 127);// run motor at half (125 PWM value) speed
delay(5000);//for 3 seconds
analogWrite(EN12, 95);// run motor at 80 PWM value
delay(5000);//for 3 seconds
digitalWrite(MOTOR1,LOW);// turn MOTOR1 OFF
Serial.println(" Motor 1 Stopped");
delay(3000);// wait for 3 seconds
// L293 Motor Control Code by Robojax.com 2018025
}