#define PIN_BUTTON 14
#define LED 15

int buttonState;

void setup() {
  pinMode(PIN_BUTTON, INPUT_PULLUP);
  pinMode(LED, OUTPUT);
}

void loop() {
  buttonState = digitalRead(PIN_BUTTON);
  if (buttonState == HIGH) {
    digitalWrite(LED, HIGH);
  }
  else {
    digitalWrite(LED, LOW);
  }
}