#define LED_MERAH 21
#define LED_KUNING 22
#define LED_HIJAU 23
#define BUTTON 2


void setup() {
  pinMode(LED_MERAH, OUTPUT);
  pinMode(LED_KUNING, OUTPUT);
  pinMode(LED_HIJAU, OUTPUT);
  pinMode(BUTTON, INPUT);
  Serial.begin(115200);
  
}

void loop() {
  if(digitalRead(BUTTON) == HIGH){
    digitalWrite(LED_KUNING, HIGH);
    Serial.println("kuning nyala");
    delay(3000);
    digitalWrite(LED_KUNING, LOW);
    Serial.println("merah nyala");
    digitalWrite(LED_MERAH, HIGH);
    delay(5000);
    Serial.println("kuning nyala");
    digitalWrite(LED_KUNING, HIGH);
    delay(2000);
    digitalWrite(LED_MERAH, LOW);
    digitalWrite(LED_KUNING, LOW);
    Serial.println("hijau nyala");
    digitalWrite(LED_HIJAU, HIGH);
    delay(3000);
    digitalWrite(LED_HIJAU, LOW);

  }
}