#define led 12
#define pin 2

void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  pinMode(pin, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

  if (digitalRead(pin) == LOW) {
    digitalWrite(led, HIGH);
  }
  else {
    digitalWrite(led, LOW);

  }
}