const int buttonPin = 2;
const int ledPin = 13;

int buttonState = 0;
int lastButtonState = 0;
bool ledState = LOW;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop() {
  buttonState = digitalRead(buttonPin);

  // Detect button press (LOW → HIGH transition)
  if (buttonState == HIGH && lastButtonState == LOW) {
    ledState = !ledState;          // Toggle LED state
    digitalWrite(ledPin, ledState);
    delay(200);                    // Debounce delay
  }

  lastButtonState = buttonState;
}