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Step 2: The Sketch

Picture of The Sketch
For all of you that aren't familiar with a lot of technology terms, like myself, a program for an arduino is called a sketch. I assume that most people that are making this have already downloaded the arduino software but in case you haven't here is a link to the site where you can download it: 
http://arduino.cc/en/Main/Software

Once you have downloaded the software, open it up and start a new sketch. Next,  click file, examples, digital, and blink without delay.
We are going to tweak this sketch a little. Go to the place where the sketch says "const  int ledPin=13;" and change it to say "const  int ledPin=12". That's it!
 
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