Arduino code and Video HC-SR04 Ultrasonic Distance Sensor with TP1637 display
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/- HC-SR04 Ultrasonic Library (from Robojax.com)
- HC-SR04 Ultrasonic Library from Arduino official website
- download TP1637 Manual
- TP1637 Library (from Robojax.com)
- 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() {
display.setBrightness(0x0f);
uint8_t data[] = { 0x0, 0x0, 0x0, 0x0 };
display.setSegments(data);
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)
Serial.println("cm");
display.showNumberDec(distance, false, 3,1);
delay(50);
}