// assigning a name is for attached by digital pin 2 with a button.
int button = 2;

// put your setup code here, to run once:
void setup() {
  // setup serial communication at 9600 bits per second.
  Serial.begin(9600);
  // make the button's pin as input
  pinMode(button, INPUT);

}

// put your main code here, to run repeatedly:
void loop() {
  // get the input pin
  int state = digitalRead(button);
  // print out state of the button
  Serial.println(state);
  // delay 1 milliseconds in between readys for stability
  delay(1);
}