#define LED_merah 13
#define LED_biru 12
#define LED_hijau 11
#define LED_kuning 10
#define tombol 4

int status = 0;

void setup() {

  pinMode(LED_merah, OUTPUT);
  pinMode(tombol, INPUT);
  pinMode(LED_biru,OUTPUT);
  pinMode(LED_hijau, OUTPUT);
  pinMode(LED_kuning, OUTPUT);

  digitalWrite(LED_merah, LOW);
  digitalWrite(LED_biru, LOW);
  digitalWrite(LED_hijau, LOW);
  digitalWrite(LED_kuning, LOW);

  Serial.begin(9600);
}

void loop() {


  if (digitalRead(tombol) == HIGH) {
    status++;
    delay(500);
    }
    if(status == 1){
      digitalWrite(LED_merah, HIGH);
      }
    else if(status == 2){
      digitalWrite(LED_hijau, HIGH);
      digitalWrite(LED_merah, LOW);
      }
    else if(status == 3){
      digitalWrite(LED_biru, HIGH);
      digitalWrite(LED_hijau, LOW);
      }
    else if(status == 4){
      digitalWrite(LED_kuning, HIGH);
      digitalWrite(LED_biru, LOW);
      }
    else if (status == 5) {
      digitalWrite (LED_merah, LOW);
      digitalWrite (LED_biru, LOW);
      digitalWrite (LED_hijau, LOW);
      digitalWrite (LED_kuning, LOW);
      }
    else if(status == 6){
      digitalWrite(LED_merah, HIGH);
      digitalWrite (LED_biru, HIGH);
      digitalWrite(LED_hijau, HIGH);
      digitalWrite (LED_kuning, HIGH);
      }
    else if(status == 7){
      status = 0;
      }
    else
    {
      digitalWrite(LED_merah, LOW);
      digitalWrite(LED_biru, LOW);
      digitalWrite (LED_hijau, LOW);
      digitalWrite (LED_kuning, LOW);
    } 
    Serial.print("Status saat ini: ");
    Serial.println(status);
  }