const int buttonPin = 4;
const int ledPin = 12;
int buttonState = 0;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode (ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  buttonState = digitalRead(buttonPin);
  Serial.println(buttonState);
  if (buttonState == HIGH)
  {digitalWrite(ledPin, LOW);}
  else
  {digitalWrite(ledPin, HIGH);}
  delay(10); // this speeds up the simulation
}