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Lesson 74: Using two Sharp Infrared sensors with Arduino


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  • Sharp Library from Roboj.com
  • Sharp Library from GitHub
  • Part 7: Obstacle Avoidance with Arduino

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

    Timign in the video
    
      /*
      * Lesson 74: Using two or ore Sharp IR distance Sensors
     * 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/WQ3oFyF5qeY
     * 
     * 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 
    content like this. You can support me on Patreon http://robojax.com/L/?id=63
    
    or make donation using PayPal http://robojax.com/L/?id=64
    
    
    
     *  * 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
    
    */
    #include <SharpIR.h>
    
    #define IR1 A1 // define signal pin
    #define IR2 A2 // define signal pin
    
    #define model1 1080 // for GP2Y0A21YK0F  used 1080
    #define model2 1080 // for GP2Y0A21YK0F  used 1080
    
    // Sharp IR code for Robojax.com
    // ir: the pin where your sensor is attached
    /*
    2 to 15 cm GP2Y0A51SK0F  use 215
    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 SharpIR1(IR1, model1);
    SharpIR SharpIR2(IR2, model2);
    
    void setup() {
        // Multiple Sharp IR Distance meter code for Robojax.com
     Serial.begin(9600);
     Serial.println("Robojax Sharp IR  ");
    
     // extra pin for 5V if needed
     pinMode(2,OUTPUT);// define pin 2 as output
     digitalWrite(2, HIGH);// set pin 2 HIGH so it always have 5V
      // Robojax.com 20181201
    }
    
    void loop() {
        // Sharp IR code for Robojax.com 20181201
        delay(500);   
    
      unsigned long startTime=millis();  // takes the time before the loop on the library begins
    
      int dis1=SharpIR1.distance();  // this returns the distance for sensor 1
      int dis2=SharpIR2.distance();  // this returns the distance for sensor 2
      // Sharp IR code for Robojax.com 20181201
    
      Serial.print("Distance (1): ");
      Serial.print(dis1);
      Serial.println("cm");
      
      Serial.print("Distance (2): ");
      Serial.print(dis2);
      Serial.println("cm");
         // Sharp IR code for Robojax.com
         
    }
    
    
       

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