Bluetooth Controlled Car_HC-05_Arduino_Code

int motor1_Back=7,motor1=8,motor2=4,motor2_Back=2;

int command ;

void setup() {

    pinMode(motor1,OUTPUT);
    pinMode(motor1_Back,OUTPUT);

    pinMode(motor2,OUTPUT);
    pinMode(motor2_Back,OUTPUT);

    Serial.begin(9600);
}

void loop()
  {
    if (Serial.available() > 0) {
    command = Serial.read();

  Serial.print("command=");

  Serial.println(command);
  if(command==82)
  {
    digitalWrite(motor1,HIGH);

  }

   else if(command==70)
  {
    digitalWrite(motor1,HIGH);
    digitalWrite(motor2,HIGH);

  }
   else if(command==76)
  {
    digitalWrite(motor2,HIGH);

  }

  else if(command==66)
  {
    digitalWrite(motor1_Back,HIGH);
    digitalWrite(motor2_Back,HIGH);
  }

  else if(command==110)
  {
    digitalWrite(motor1_Back,HIGH);

  }
  else if(command==109)
  {

    digitalWrite(motor2_Back,HIGH);
  }


  else if(command==83)
  {
    digitalWrite(motor1,LOW);
    digitalWrite(motor1_Back,LOW);
    digitalWrite(motor2,LOW);
    digitalWrite(motor2_Back,LOW);
  }

  }
  }