const int ledMerah = 13;  
const int ledKuning = 3;  


unsigned long previousMillisMerah = 0;
unsigned long previousMillisKuning = 0;


const long intervalMerah = 500;  


const long intervalKuningNyala = 5000;  
const long intervalKuningMati = 10000;  

bool statusLampuMerah = LOW;  
bool statusLampuKuning = LOW; 

unsigned long merahBlinkDuration = 5000;  
unsigned long merahBlinkStartTime = 0;    

void setup() {
  pinMode(ledMerah, OUTPUT);
  pinMode(ledKuning, OUTPUT);
}

void loop() {
  
  unsigned long currentMillis = millis();


  if (currentMillis - merahBlinkStartTime < merahBlinkDuration) {

    if (currentMillis - previousMillisMerah >= intervalMerah) {
      previousMillisMerah = currentMillis;
      statusLampuMerah = !statusLampuMerah; 
      digitalWrite(ledMerah, statusLampuMerah);
    }
  } else {
    digitalWrite(ledMerah, LOW);
  }


  if (statusLampuKuning == LOW) {

    if (currentMillis - previousMillisKuning >= intervalKuningMati) {
      statusLampuKuning = HIGH;
      previousMillisKuning = currentMillis;
      digitalWrite(ledKuning, HIGH);
 
      merahBlinkStartTime = currentMillis;  
    }
  } else {
 
    if (currentMillis - previousMillisKuning >= intervalKuningNyala) {
      statusLampuKuning = LOW;
      previousMillisKuning = currentMillis;
      digitalWrite(ledKuning, LOW);
    }
  }
}