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


int status = 0;


void setup() {
  // put your setup code here, to run once:
  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() {
  // put your main code here, to run repeatedly:
  if (digitalRead(tombol) == HIGH) {
    status++;
    delay(1000);
  }


  if (status == 1) {
    // LED Hijau menyala
    digitalWrite(LED_hijau, HIGH);
  } else if (status == 2) {
    // LED biru menyala
    digitalWrite(LED_biru, HIGH);
  } else if (status == 3) {
    // LED merah menyala
    digitalWrite(LED_merah, HIGH);
  } else if (status == 4) {
    // Ketiga LED mati
    status = 0; // reset ke status 0
    digitalWrite(LED_hijau, LOW);
    digitalWrite(LED_biru, LOW);
    digitalWrite(LED_merah, LOW);
    delay(1000);
  }
}