#define LED_PIN 3
#define BUTTON_PIN 2

int buttonState = 0;  // Variable to store button state
int lastButtonState = 0;  // Previous state of the button
bool ledState = false;  // LED state: false = OFF, true = ON

void setup() {
  pinMode(LED_PIN, OUTPUT);  // Set LED pin as output
  pinMode(BUTTON_PIN, INPUT_PULLUP);  // Set button pin as input with pull-up resistor
}

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

  // Check if button is pressed
  if (buttonState == LOW && lastButtonState == HIGH) {
    // Toggle LED state
    ledState = !ledState;
    digitalWrite(LED_PIN, ledState ? HIGH : LOW);  // Turn LED ON/OFF
    delay(200);  // Debounce delay
  }

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