int status = 0;
int LED_ungu = 13; 
int LED_merah = 12;
int LED_kuning = 11;
int LED_biru = 10;
int tombol = 2;
void setup() {
  pinMode(LED_ungu, OUTPUT);
  pinMode(LED_merah, OUTPUT);
  pinMode(LED_kuning, OUTPUT);
  pinMode(LED_biru, OUTPUT);
  pinMode(tombol, INPUT);
  digitalWrite(LED_ungu, LOW);
  digitalWrite(LED_merah, LOW);
  digitalWrite(LED_kuning, LOW);
  digitalWrite(LED_biru, LOW);
}
void loop() {
  if (digitalRead(tombol)== HIGH) {
    status ++;
    delay(400);
  }
  if (status == 1) {
    digitalWrite(LED_ungu, HIGH);
  }
  else if(status == 2) {
    digitalWrite(LED_merah, HIGH);
  }
  else if(status == 3) {
    digitalWrite(LED_kuning, HIGH);
  }
  else if(status == 4) {
    digitalWrite(LED_biru, HIGH);
  }
  else if(status == 5) {
    status = 0;
  }
  else
  {
    digitalWrite(LED_ungu, LOW);
    digitalWrite(LED_merah, LOW);
    digitalWrite(LED_kuning, LOW);
    digitalWrite(LED_biru, LOW);
  }
}