// constants won't change. They're used here to
// set pin numbers:
int buttonPin = 23;   // the number of the pushbutton pin
int ledPin = 8;      // the number of the LED pin

int buttonState;     // the current reading from the input pin
int lastButtonState = LOW;   // the previous reading from the input pin
int reading = 1;

void setup() {

  // Set initial pin states, and turn off the LED
  
  pinMode(buttonPin, INPUT_PULLUP);
  
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);
  
}

void loop() {
  // Read the state of the switch into a local variable.
  int reading = digitalRead(buttonPin);

  
    // if the button state has changed:
    if (reading == 0) 
      {
      digitalWrite(ledPin, HIGH);
      }
          // if the button state has changed:
    else if (reading == 1) 
      {
      digitalWrite(ledPin, LOW);
      }
   
  //Serial.println(reading);
  //Serial.println(reading);

  //delay(1000);



}