 
 // constants won't change. They're used here to 
 // set pin numbers:
-const int buttonPin = 2;    // the number of the pushbutton pin
-const int ledPin = 13;      // the number of the LED pin
+const int buttonPin = A3;    // the number of the pushbutton pin
+const int ledPin = A2;      // the number of the LED pin
 
 // Variables will change:
 int ledState = HIGH;         // the current state of the output pin
 int buttonState;             // the current reading from the input pin
-int lastButtonState = LOW;   // the previous reading from the input pin
+int lastButtonState = HIGH;   // the previous reading from the input pin
 
 // the following variables are long's because the time, measured in miliseconds,
 // will quickly become a bigger number than can be stored in an int.

    if (reading != buttonState) {
      buttonState = reading;

      // only toggle the LED if the new button state is HIGH
      if (buttonState == HIGH) {
        ledState = !ledState;
      }
    }

 by Limor Fried
 modified 28 Dec 2012
 by Mike Walters
 modified 25 May 2016
 by bunnie
 
 This example code is in the public domain.
 
