How to Make External Buttons For Your Keyboard

There are a lot of times when it would be convenient to have external buttons or your keyboard such as a foot pedal. If you are into PC gaming, a foot pedal button would let you activate commands while moving and aiming at the same time. Or you could just use it to scroll through Reddit while eating ribs. You could even use it for research by using it to log how many times a certain event occurs. Use your imagination.

For step by step instructions, check out the Instructable:
http://www.instructables.com/id/Create-External-Buttons-For-Your-Keyboard/