#define merah 4
#define kuning 2
#define hijau 15
#define tombol 19

int x = 0;

void setup() {
  pinMode(merah, OUTPUT);
  pinMode(kuning, OUTPUT);
  pinMode(hijau, OUTPUT);
  pinMode(tombol, INPUT);
  Serial.begin(115200);
}

void loop() {
  // if (digitalRead(tombol) == HIGH) {
  //   digitalWrite(merah, LOW);
  //   digitalWrite(kuning, HIGH);
  //   digitalWrite(hijau, LOW);

  //   delay(3000);

  //   digitalWrite(merah, HIGH);
  //   digitalWrite(kuning, LOW);
  //   digitalWrite(hijau, LOW);

  //   delay(5000);

  //   digitalWrite(merah, HIGH);
  //   digitalWrite(kuning, HIGH);
  //   digitalWrite(hijau, LOW);

  //   delay(2000);

  //   digitalWrite(merah, LOW);
  //   digitalWrite(kuning, LOW);
  //   digitalWrite(hijau, HIGH);

  //   delay(3000);

  //   digitalWrite(merah, LOW);
  //   digitalWrite(kuning, LOW);
  //   digitalWrite(hijau, LOW);
  // }
  // else {
  //   digitalWrite(merah, LOW);
  //   digitalWrite(kuning, LOW);
  //   digitalWrite(hijau, LOW);
  // }
  if (digitalRead(tombol) == HIGH) {
    x = x+1;
    if (x == 1) {
      digitalWrite(merah, HIGH);
    }
    else if (x == 2) {
      digitalWrite(merah, LOW);
      x = 0;
    }
    Serial.println(x);
    delay(250);
  }
}