   //motorStop(0); // again might be useful if the robot is in a turning move
 
   // stop the motors first incase they are moving forward (to prevent mechinical failure)
-  motorStop(1); 
-  motorStop(2);
+  motorStop(FRONT_LEFT_MOTOR); 
+  motorStop(FRONT_RIGHT_MOTOR);
   
   // set motors to move backwards
-  motorBackward(1, power);
-  motorBackward(2,power);
+  motorBackward(FRONT_LEFT_MOTOR, power);
+  motorBackward(FRONT_RIGHT_MOTOR,power);
 
   // send reply message
   Serial.println("Robot back");

}




void moveRobotForward(int power){

  //motorStop(0); // this might be useful, in the case the robot is already in a turning move
  
  motorForward(1,power);
  motorForward(2,power);

  // need to create a reply message to let the PC acknowledge the accepted request and execution
  Serial.println("Robot forward");

  motorAllStop(); // use this for now, can change later on

  // set motors for left rotation
  motorForward(FRONT_RIGHT_MOTOR,power);
  motorForward(TURNING_MOTOR,power);

  // send reply message 
  Serial.println("Robot left");
