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Human Follower Car| Arduino Uno Projects| Topped With Fun| Following Car

 Circuit Diagram:


Code:

//Install The Libraries AF Motor driver, NewPing and Servo From Sketch->Include Library->Manage Libraries

//Topped With FUn

//https://www.youtube.com/channel/UCN5Ed7vtag-l_ilc20sazDA


#include<NewPing.h>

#include<Servo.h>

#include<AFMotor.h>

#define RIGHT A2

#define LEFT A3

#define TRIGGER_PIN A1

#define ECHO_PIN A0

#define MAX_DISTANCE 100

  


NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);



AF_DCMotor Motor1(1,MOTOR12_1KHZ);

AF_DCMotor Motor2(2,MOTOR12_1KHZ);

AF_DCMotor Motor3(3,MOTOR34_1KHZ);

AF_DCMotor Motor4(4,MOTOR34_1KHZ);


Servo myservo;

 

int pos =0;


void setup() {

  Serial.begin(9600);

myservo.attach(10);

{

for(pos = 90; pos <= 180; pos += 1){

  myservo.write(pos);

  delay(15);

} for(pos = 180; pos >= 0; pos-= 1) {

  myservo.write(pos);

  delay(15);

}for(pos = 0; pos<=90; pos += 1) {

  myservo.write(pos);

  delay(15);

}

}

pinMode(RIGHT, INPUT);

pinMode(LEFT, INPUT);


}


void loop() {


  delay(50);

 unsigned int distance = sonar.ping_cm();

Serial.print("distance");

Serial.println(distance);



int Right_Value = digitalRead(RIGHT);

int Left_Value = digitalRead(LEFT);


Serial.print("RIGHT");

Serial.println(Right_Value);

Serial.print("LEFT");

Serial.println(Left_Value);


if((Right_Value==1) && (distance>=5 && distance<=20)&&(Left_Value==1)){

  Motor1.setSpeed(100);

  Motor1.run(FORWARD);

  Motor2.setSpeed(100);

  Motor2.run(FORWARD);

  Motor3.setSpeed(100);

  Motor3.run(FORWARD);

  Motor4.setSpeed(100);

  Motor4.run(FORWARD);

}else if((Right_Value==0) && (Left_Value==1)) {

  Motor1.setSpeed(100);

  Motor1.run(FORWARD);

  Motor2.setSpeed(100);

  Motor2.run(FORWARD);

  Motor3.setSpeed(100);

  Motor3.run(BACKWARD);

  Motor4.setSpeed(100);

  Motor4.run(BACKWARD);

}else if((Right_Value==1)&&(Left_Value==0)) {

  Motor1.setSpeed(100);

  Motor1.run(BACKWARD);

  Motor2.setSpeed(100);

  Motor2.run(BACKWARD);

  Motor3.setSpeed(100);

  Motor3.run(FORWARD);

  Motor4.setSpeed(100);

  Motor4.run(FORWARD);

}else if((Right_Value==1)&&(Left_Value==1)) {

  Motor1.setSpeed(0);

  Motor1.run(RELEASE);

  Motor2.setSpeed(0);

  Motor2.run(RELEASE);

  Motor3.setSpeed(0);

  Motor3.run(RELEASE);

  Motor4.setSpeed(0);

  Motor4.run(RELEASE);

}else if(distance > 1 && distance < 5) {

  Motor1.setSpeed(0);

  Motor1.run(RELEASE);

  Motor2.setSpeed(0);

  Motor2.run(RELEASE);

  Motor3.setSpeed(0);

  Motor3.run(RELEASE);

  Motor4.setSpeed(0);

  Motor4.run(RELEASE);

  }

 }

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