How To Make HC-05 Bluetooth Controlled Car With Arduino U...

 Diagram


Code 

#include <AFMotor.h>


//initialising motors pin

AF_DCMotor motor1(1, MOTOR12_1KHZ); 

AF_DCMotor motor2(2, MOTOR12_1KHZ); 

AF_DCMotor motor3(3, MOTOR34_1KHZ);

AF_DCMotor motor4(4, MOTOR34_1KHZ);


char command; 


void setup() 

{       

  Serial.begin(9600);  //Set the baud rate to your Bluetooth module.

}


void loop(){

  if(Serial.available() > 0){ 

    command = Serial.read(); 

    Stop(); //initialize with motors stoped

    //Change pin mode only if new command is different from previous.   

    //Serial.println(command);

    switch(command){

    case 'F':  

      forward();

      break;

    case 'B':  

       back();

      break;

    case 'L':  

      left();

      break;

    case 'R':

      right();

      break;

    }

  } 

}


void forward()

{

  motor1.setSpeed(255); //Define maximum velocity

  motor1.run(FORWARD); //rotate the motor clockwise

  motor2.setSpeed(255); //Define maximum velocity

  motor2.run(FORWARD); //rotate the motor clockwise

  motor3.setSpeed(255);//Define maximum velocity

  motor3.run(FORWARD); //rotate the motor clockwise

  motor4.setSpeed(255);//Define maximum velocity

  motor4.run(FORWARD); //rotate the motor clockwise

}


void back()

{

  motor1.setSpeed(255); //Define maximum velocity

  motor1.run(BACKWARD); //rotate the motor anti-clockwise

  motor2.setSpeed(255); //Define maximum velocity

  motor2.run(BACKWARD); //rotate the motor anti-clockwise

  motor3.setSpeed(255); //Define maximum velocity

  motor3.run(BACKWARD); //rotate the motor anti-clockwise

  motor4.setSpeed(255); //Define maximum velocity

  motor4.run(BACKWARD); //rotate the motor anti-clockwise

}


void left()

{

  motor1.setSpeed(255); //Define maximum velocity

  motor1.run(BACKWARD); //rotate the motor anti-clockwise

  motor2.setSpeed(255); //Define maximum velocity

  motor2.run(BACKWARD); //rotate the motor anti-clockwise

  motor3.setSpeed(255); //Define maximum velocity

  motor3.run(FORWARD);  //rotate the motor clockwise

  motor4.setSpeed(255); //Define maximum velocity

  motor4.run(FORWARD);  //rotate the motor clockwise

}


void right()

{

  motor1.setSpeed(255); //Define maximum velocity

  motor1.run(FORWARD); //rotate the motor clockwise

  motor2.setSpeed(255); //Define maximum velocity

  motor2.run(FORWARD); //rotate the motor clockwise

  motor3.setSpeed(255); //Define maximum velocity

  motor3.run(BACKWARD); //rotate the motor anti-clockwise

  motor4.setSpeed(255); //Define maximum velocity

  motor4.run(BACKWARD); //rotate the motor anti-clockwise

} 


void Stop()

{

  motor1.setSpeed(0); //Define minimum velocity

  motor1.run(RELEASE); //stop the motor when release the button

  motor2.setSpeed(0); //Define minimum velocity

  motor2.run(RELEASE); //rotate the motor clockwise

  motor3.setSpeed(0); //Define minimum velocity

  motor3.run(RELEASE); //stop the motor when release the button

  motor4.setSpeed(0); //Define minimum velocity

  motor4.run(RELEASE); //stop the motor when release the button

}



Done by K.Lingeswar 

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