const int buttonPin = 3;  // the number of the pushbutton pin
const int outputPin = 4;    // the number of the LED pin

// variables will change:
int buttonState = 0;  // variable for reading the pushbutton status

void setup() {
  Serial.begin(9600);
  pinMode(outputPin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
  // read the state of the pushbutton value:
  digitalWrite (outputPin, LOW);
  buttonState = digitalRead(buttonPin);
  Serial.println (buttonState);

  if (buttonState == HIGH)
  {
    Serial.println("ON");
    delay(1000);
  }
  if (buttonState == LOW)
  {
    Serial.println("OFF");
    delay (1000);
  }
}