// Pin assignment
const int ledPin = 13;      // LED connected to digital pin 13
const int buttonPin = 2;    // Push button connected to digital pin 2

bool ledState = LOW;        // Current state of the LED (OFF by default)
bool buttonState = HIGH;    // Current state of the button
bool lastButtonState = HIGH; // Previous button state

void setup() {
  pinMode(ledPin, OUTPUT);       // Set LED pin as output
  pinMode(buttonPin, INPUT_PULLUP); // Set button pin as input with internal pull-up
}

void loop() {
  // Read the current state of the button
  buttonState = digitalRead(buttonPin);

  // Check if the button is pressed (active low) and detect state change
  if (buttonState == LOW && lastButtonState == HIGH) {
    // Toggle the LED state
    ledState = !ledState;
    digitalWrite(ledPin, ledState);
  }

  // Store the current button state for the next loop
  lastButtonState = buttonState;

  delay(50); // Debounce delay to avoid rapid toggling
}