Lesson 73: Distance measurement using Sharp Infrared Sensor with Arduino

Part 7: Obstacle Avoidance with Arduino

This video shows you how to measure the distance between 4cm to 180cm depending on the module, using Arduino. Sharp Analog output modules:

2 to 15 cm GP2Y0A51SK0F
4 to 30 cm GP2Y0A41SK0F / GP2Y0AF30 series
10 to 80 cm GP2Y0A21YK0F
10 to 150 cm GP2Y0A60SZLF
20 to 150 cm GP2Y0A02YK0F
100 to 550 cm GP2Y0A710K0F

Timign in the video

00:00 Introduction
03:33 Wiring Explained
04:09 Code Explained
08:57 Demonstration


  /*
  * Lesson 73: Sharp IR distance measurement
 * Sharp IR (infrared) distance measurement module for Arduino
 * Measures the distance in cm. 
 * written by Ahmad Shamshiri for Robojax.com 
 * on Feb 25, 2019 at 21:38 in Ajax, Ontario, Canada




 * Original library: https://github.com/guillaume-rico/SharpIR
 
 * Watch Video instrution for this code: https://youtu.be/4f0UD8O768I
 * 
 * Full explanation of this code and wiring diagram is available at
 * my Arduino Course at Udemy.com here: http://robojax.com/L/?id=62

 * Written by Ahmad Shamshiri on Feb 03, 2018 at 07:34
 * in Ajax, Ontario, Canada. www.robojax.com
 * 


If you found this tutorial helpful, please support me so I can continue creating 
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 *  * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been download from Robojax.com
    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/>.

*/




 */
  // Sharp IR code for Robojax.com
#include 

#define IR A0 // define signal pin
#define model 1080 // used 1080 because model GP2Y0A21YK0F is used
// Sharp IR code for Robojax.com
// ir: the pin where your sensor is attached
// model: an int that determines your sensor:  1080 for GP2Y0A21Y
//                                            20150 for GP2Y0A02Y
//                                            430 for GP2Y0A41SK   
/*
2 to 15 cm GP2Y0A51SK0F	use 1080
4 to 30 cm GP2Y0A41SK0F / GP2Y0AF30 series	use 430
10 to 80 cm GP2Y0A21YK0F	use 1080
10 to 150 cm GP2Y0A60SZLF	use 10150
20 to 150 cm GP2Y0A02YK0F	use 20150
100 to 550 cm GP2Y0A710K0F	use 100550

 */

SharpIR SharpIR(IR, model);
void setup() {
    // Sharp IR code for Robojax.com
 Serial.begin(9600);
 Serial.println("Robojax Sharp IR  ");
}

void loop() {
    // Sharp IR code for Robojax.com
    delay(500);   

  unsigned long startTime=millis();  // takes the time before the loop on the library begins

  int dis=SharpIR.distance();  // this returns the distance to the object you're measuring

  // Sharp IR code for Robojax.com

  Serial.print("Mean distance: ");  // returns it to the serial monitor
  Serial.println(dis);
  //Serial.println(analogRead(A0));
  unsigned long endTime=millis()-startTime;  // the following gives you the time taken to get the measurement
 Serial.print("Time taken (ms): ");
 Serial.println(endTime);  
     // Sharp IR code for Robojax.com
     
}

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