const int ButtonUp = 2;
const int ButtonDown = 4;
const int led = 8;

int buttonCounter = 0;
bool ledState = false;
unsigned long previousMillis = 0;
unsigned long interval = 500; // Interval default

void setup() {
  Serial.begin(9600);
  pinMode(ButtonUp, INPUT);
  pinMode(ButtonDown, INPUT);
  pinMode(led, OUTPUT);
}

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

  // Membaca tombol dan menambahkan counter jika ditekan
  if (digitalRead(ButtonUp) == HIGH) {
    buttonCounter++;
    Serial.print("Button pushed. Total button pushes: ");
    Serial.println(buttonCounter);
    delay(250);
    // Mengatur delay baru untuk LED
    interval = buttonCounter * 500;
    previousMillis = currentMillis; // Me-reset waktu sebelumnya
  }

  // Counter Down
  if (digitalRead(ButtonDown) == HIGH) {
    buttonCounter--;
    Serial.print("Button pushed. Total button pushes: ");
    Serial.println(buttonCounter);
    delay(250);
    // Mengatur delay baru untuk LED
    interval = buttonCounter * 500;
    previousMillis = currentMillis; // Me-reset waktu sebelumnya
  }

  // Mengontrol LED berdasarkan interval waktu
  if (currentMillis - previousMillis >= interval) {
    // Toggle status LED
    ledState = !ledState;
    digitalWrite(led, ledState);
    previousMillis = currentMillis; // Me-reset waktu sebelumnya
  }
}