Other Arduino Codes and Videos by Robojax

Arduino code and Video HC-SR04 Ultrasonic Distance Sensor with TP1637 display

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This is the Arduino code for HC-SR04 Ultrasonic Distance Sensor with TP1637 display

This video shows you how to use HC-SR04 Ultrasonic with TM1637 4 digit 7-segment display module for arduino. http://robojax.com/learn/arduino/
  1. HC-SR04 Ultrasonic Library (from Robojax.com)
  2. HC-SR04 Ultrasonic Library from Arduino official website
  3. download TP1637 Manual
  4. TP1637 Library (from Robojax.com)
  5. TP1637 Library (from GetHub)

 * This is the Arduino code for  HC-SR04 Ultrasonic Distance Sensor with TP1637 Display
 * to measure the distance using Arduino for robotic car and other applications
 * Watch the video https://youtu.be/SlgLj_T5GaY
 *  * 
 * Written by Ahmad Shamshiri for Robojax Video
 * Date: Dec 21, 2017, in Ajax, Ontario, Canada
 * 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.

/* Original Code 
   from https://github.com/avishorp/TM1637
// https://playground.arduino.cc/Code/NewPing
 * Modified for Robojax video on Dec 21, 2017
// ---------------------------------------------------------------------------
// Example NewPing library sketch that does a ping about 20 times per second.
// ---------------------------------------------------------------------------

#include <NewPing.h>

#define TRIGGER_PIN  12  // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN     11  // Arduino pin tied to echo pin on the ultrasonic sensor.
#define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.

#include <Arduino.h>
#include <TM1637Display.h>

// Module connection pins (Digital Pins)
#define CLK 2
#define DIO 3
// The amount of time (in milliseconds) between tests
#define TEST_DELAY  500
TM1637Display display(CLK, DIO);

void setup() {
  Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results.

void loop() {
  uint8_t data[] = { 0x0, 0x0, 0x0, 0x0 };
  int distance = sonar.ping_cm();// get the distance and store it in "distance" variable
                     // Wait 50ms between pings (about 20 pings/sec). 29ms should be the shortest delay between pings.
  Serial.print("Ping: ");
  Serial.print(sonar.ping_cm()); // Send ping, get distance in cm and print result (0 = outside set distance range)
  display.showNumberDec(distance, false, 3,1);

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