const int buttonPin = 7; // Pin where the button is connected
const int ledPin = 8;    // Pin where the LED is connected

int buttonState = 0;         // Variable to store the button state
int lastButtonState = 0;     // Variable to store the last button state
unsigned long lastDebounceTime = 0;  // Variable to store the last debounce time
unsigned long debounceDelay = 50;    // Debounce time (in milliseconds)

void setup() {
  pinMode(buttonPin, INPUT);       // Set the button pin as an input
  pinMode(ledPin, OUTPUT);         // Set the LED pin as an output
}

void loop() {
  int reading = digitalRead(buttonPin); // Read the state of the button

  // Check if the button state has changed
  if (reading != lastButtonState) {
    // Reset the debounce timer
    lastDebounceTime = millis();
  }

  // If the state has been stable for longer than the debounce delay
  if ((millis() - lastDebounceTime) > debounceDelay) {
    // If the button state has changed
    if (reading != buttonState) {
      buttonState = reading;

      // If the button is pressed
      if (buttonState == HIGH) {
        digitalWrite(ledPin, HIGH); // Turn the LED on
        delay(1000); // Wait for 1 second
        digitalWrite(ledPin, LOW); // Turn the LED off
      }
    }
  }

  // Save the reading. Next time through the loop, it'll be the lastButtonState
  lastButtonState = reading;
}