#define LED_hijau 13
#define LED_biru 12
#define LED_merah 11
#define tombol 7

int status = 0;

void setup() {
  pinMode(LED_hijau, OUTPUT);
  pinMode(tombol, INPUT);
  pinMode(LED_biru, OUTPUT);
  pinMode(LED_merah, OUTPUT);
  digitalWrite(LED_hijau, LOW);
  digitalWrite(LED_biru, LOW);
  digitalWrite(LED_merah, LOW);
  Serial.begin(9600);
}

void loop() {
  int buttonState = digitalRead(tombol);

  if (buttonState == HIGH) {
    status++;
    delay(500);
  }

  if (status == 1) {
    digitalWrite(LED_hijau, HIGH);
  } else if (status == 2) {
    digitalWrite(LED_biru, HIGH);
  } else if (status == 3) {
    digitalWrite(LED_merah, HIGH);
  } else if (status == 4) {
    status = 0;
    digitalWrite(LED_hijau, LOW);
    digitalWrite(LED_biru, LOW);
    digitalWrite(LED_merah, LOW);
  }

  Serial.println(status);
}