bool lastState = HIGH;

int speedIndex = 0;
int blinkDelay[] = {1000, 500, 250};
bool ledState = false;

void setup() {
  Serial.begin(115200);
  Serial.println("Latihan 2b");
  pinMode(16, OUTPUT);
  pinMode(14, INPUT_PULLUP);
}

void loop() {
  bool currentState = digitalRead(14);

  if (currentState == HIGH && lastState == LOW) {
    speedIndex = speedIndex + 1;
    if (speedIndex > 2) {
      speedIndex = 0;
    }
    delay(200); 
  }

  lastState = currentState;

  ledState = !ledState;
  digitalWrite(16, ledState);
  delay(blinkDelay[speedIndex]); 
}