// Define the pin numbers
    #define BUTTON_PIN 1  // Pin D1
    #define LED_PIN 0     // Pin D0

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

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

        // If the button is pressed (buttonState is LOW)
        if (buttonState == LOW) {
        // Turn on the LED
        digitalWrite(LED_PIN, HIGH);
        } else {
        // Turn off the LED
        digitalWrite(LED_PIN, LOW);
        }
    }