Arduino Object Following Robot

Object Following Robot

    Watch the entire DIY Video of making (J.A.O.F) Arduino Object Following Robot...

Required Parts :

• Arduino  UNO Board
• L293D Motor Driver
• IR Sensors
• UltraSonic Sensor
• Gear Motors and Rubber Wheels
• Jumper Wires
• Li-ion Battery

Circuit Diagram :

Arduino Code :

//1 OCT 2020

//Just An Object Follower -> J.A.O.F

//      < M.P.R >

//For THE FAUCETER Subscribers 

#include <Servo.h>

#include <AFMotor.h>

#define echo A0

#define trig A1

#define left A2

#define right A3

Servo servo;

int i;

long duration ;

int distance ;

AF_DCMotor motor3(3,MOTOR34_1KHZ);  //L

AF_DCMotor motor4(4,MOTOR34_1KHZ);  //R

void setup()  {

  pinMode(trig,OUTPUT);

  pinMode(echo,INPUT);

  pinMode(left,INPUT);

  pinMode(right,INPUT);

  Serial.begin(9600);

  servo.attach(10);

}

void loop() {

  

  distance = calculateDistance();

  servo.write(0);

  servo.write(180);

    

  Serial.println(distance);

  

  if(distance<=15 && distance>0) {

    servo.write(90);

    motor3.run(FORWARD);

    motor3.setSpeed(180);

    motor4.run(FORWARD);

    motor4.setSpeed(180);

  }

  else if(digitalRead(left)==0 && !analogRead(right)==0) {//L

    servo.write(0);

    motor3.run(FORWARD);

    motor3.setSpeed(150);

    motor4.run(BACKWARD);

    motor4.setSpeed(10);

    

    delay(150);

  }

  else if(!digitalRead(left)==0 && digitalRead(right)==0) {//R

    servo.write(180);

    motor3.run(BACKWARD);

    motor3.setSpeed(10);

    motor4.run(FORWARD);

    motor4.setSpeed(150);

   

    delay(150);

  }

  else {

    servo.write(90);

    motor3.run(RELEASE);

    motor3.setSpeed(0);

    motor4.run(RELEASE);

    motor4.setSpeed(0);

    delay(500);   

  }

}

int calculateDistance() {

    digitalWrite(trig,HIGH);

    delayMicroseconds(1);

    digitalWrite(trig,LOW);

    duration = pulseIn(echo,HIGH);

    distance = duration*0.034/2;

    return distance;

  }

  

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