#define LED_PIN 0      // LED connected to GP0
#define BUTTON_PIN 2   // Button connected to GP2

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

void loop() {
    if (digitalRead(BUTTON_PIN) == HIGH) {  
        digitalWrite(LED_PIN, HIGH);  // Turn on LED
    } else {
        digitalWrite(LED_PIN, LOW);   // Turn off LED
    }
    delay(100);
}