code sgvr mini

//SGVR MINI version 1.0.0

// Features: Motor, LED

const int motorA1 = 2; //masuk pin2
const int motorA2 = 3;  //masuk pin3
const int motorB1 = 4;  //masuk pin4
const int motorB2 = 5;  //masuk pin5
const int ledmerah = 10;  //:LED indikator on/off masuk pin10
const int ledhijau = 11;  //LED indikator jalan masuk pin11

int incomingByte;      // a variable to read incoming serial data into

void setup() {
  // initialize serial communication:
  Serial.begin(9600);
  // initialize the LED pin as an output:
  pinMode (motorA1, OUTPUT);
  pinMode (motorA2, OUTPUT);
  pinMode (motorB1, OUTPUT);
  pinMode (motorB2, OUTPUT);
  pinMode (ledmerah, OUTPUT);
  pinMode (ledhijau, OUTPUT);
}

void loop() {

  digitalWrite (ledmerah, HIGH);
  // see if there's incoming serial data:
  if (Serial.available() > 0) {
    // read the oldest byte in the serial buffer:
    incomingByte = Serial.read();
    // if it's a 1 (ASCII 72), go forward:
    if (incomingByte == '1') {
      digitalWrite (motorA1, HIGH);
            digitalWrite (motorB1, HIGH);
      digitalWrite (motorA2, LOW);
            digitalWrite (motorB2, LOW);
            digitalWrite (ledhijau, HIGH);
      delay (100) ;
      digitalWrite (motorA1, LOW);
            digitalWrite (motorB1, LOW);
      digitalWrite (motorA2, LOW);
            digitalWrite (motorB2, LOW);
            digitalWrite (ledhijau, LOW);
    }

    if (incomingByte == '2') {
      digitalWrite (motorA1, LOW);
            digitalWrite (motorB1, LOW);
      digitalWrite (motorA2, HIGH);
            digitalWrite (motorB2, HIGH);
            digitalWrite (ledhijau, HIGH);
      delay (100) ;
      digitalWrite (motorA1, LOW);
            digitalWrite (motorB1, LOW);
      digitalWrite (motorA2, LOW);
            digitalWrite (motorB2, LOW);
            digitalWrite (ledhijau, LOW);
    }

      if (incomingByte == '3') {
      //digitalWrite (motorA1, HIGH);
            digitalWrite (motorB1, HIGH);
      //digitalWrite (motorA2, LOW);
            digitalWrite (motorB2, LOW);
            digitalWrite (ledhijau, HIGH);
      delay (100) ;
      //digitalWrite (motorA1, LOW);
            digitalWrite (motorB1, LOW);
      //digitalWrite (motorA2, LOW);
            digitalWrite (motorB2, LOW);
            digitalWrite (ledhijau, LOW);

      }

        if (incomingByte == '4') {
      digitalWrite (motorA1, HIGH);
    //        digitalWrite (motorB1, HIGH);
      digitalWrite (motorA2, LOW);
     //       digitalWrite (motorB2, LOW);
     digitalWrite (ledhijau, HIGH);
      delay (100) ;
      digitalWrite (motorA1, LOW);
     //       digitalWrite (motorB1, LOW);
      digitalWrite (motorA2, LOW);
     //       digitalWrite (motorB2, LOW);
     digitalWrite (ledhijau, LOW);
    }



    }

  }