nt ledPin = D2;
int switchPin = D3;
int ledBrightness = 0;
// int photoCellPin = A0;
// int photoCellReading = 0;

void setup()
{


  pinMode( switchPin , INPUT_PULLUP); // sets pin as input

  // We also want to use the LED

  pinMode( ledPin , OUTPUT ); // sets pin as output

}

void loop()
{
   // find out if the button is pushed
   // or not by reading from it.
   int buttonState = digitalRead( switchPin );

  // Using a pulldown resistor we get a LOW
  // Signal when its on
  
  if( buttonState == HIGH )
  {
     digitalWrite( ledPin, HIGH);
  }else{
    // otherwise
    // turn the LED Off
    digitalWrite( ledPin, LOW);
  
  }