void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(2, INPUT_PULLUP);
  pinMode(13, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int sensorVal = digitalRead(2);
  Serial.println(sensorVal);
  if (sensorVal == HIGH){
    digitalWrite(13, LOW);
  }
  else{
    digitalWrite(13, HIGH);
  }
}