const int ledPin = 15;  // GPIO pin for LED
const int buttonPin = 14; // GPIO pin for Push Button

void setup() {
  Serial.begin(115200);  // Initialize serial communication
  pinMode(ledPin, OUTPUT);   // Set the LED pin as output
  pinMode(buttonPin, INPUT_PULLUP);  // Set the button pin as input with internal pull-up
}

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

  if (buttonState == HIGH) {  // Button is pressed
    digitalWrite(ledPin, HIGH);  // LED stays ON
  } else {  // Button is NOT pressed
    digitalWrite(ledPin, LOW);  // LED stays OFF
    delay(500);  // Wait for half a second
    digitalWrite(ledPin, HIGH);  // Turn the LED ON
    delay(500);  // Wait for another half second
  }
}