int button = 2;
int led = 3;

int state;

void setup() {
  pinMode(button, INPUT_PULLUP);
  pinMode(led, OUTPUT);
  Serial.begin(9600);

}

void loop() {
  state = digitalRead(button);

  if (state == HIGH) {
    Serial.println("button not pressed");
    digitalWrite(led, LOW);
  }

  else {
    Serial.println("button pressed");
    digitalWrite(led, HIGH);
  }

  delay(100);

}