const int buttonPin = 34;
const int redPin = 25;
const int yellowPin = 33;
const int greenPin = 32;

void setup() {
  Serial.begin(115200);
  pinMode(redPin, OUTPUT);
  pinMode(yellowPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
  int buttonState = digitalRead(buttonPin);
  Serial.println(buttonState);
  if (buttonState == HIGH) {
    digitalWrite(redPin, HIGH);
    digitalWrite(yellowPin, LOW);
    digitalWrite(greenPin, LOW);
    Serial.println("lampu merah");
    delay(5000);
  } else {
    digitalWrite(redPin, LOW);
    digitalWrite(yellowPin, LOW);
    digitalWrite(greenPin, HIGH);
    Serial.println("lampu hijau");
    delay(5000);
    
    digitalWrite(redPin, HIGH);
    digitalWrite(yellowPin, LOW);
    digitalWrite(greenPin, LOW);
    Serial.println("lampu merah");
    delay(5000);
    
    digitalWrite(redPin, LOW);
    digitalWrite(yellowPin, HIGH);
    digitalWrite(greenPin, LOW);
    Serial.println("lampu kuning");
    delay(2000);

    digitalWrite(redPin, LOW);
    digitalWrite(yellowPin, LOW);
    digitalWrite(greenPin, HIGH);
    Serial.println("lampu hijau");
    delay(5000);
  }
}