3 DIY potentiometers

A youtube video describing how to hook up old potentiometers  to your DIY foot pedal
https://www.youtube.com/watch?v=7rVt2EMk_GM

How to install
http://www.instructables.com/id/Unique-homemade-volumepotentiometer-knobs/

Different kinds of potentiometers
http://www.hifivision.com/diy/52402-diy-potentiometer-knob-build.html

Ada Fruit lessons 0, 1, 2, 3

Mystery Resistors

Wave shield

Soldered the shield and made the wave shield work 

LED Matrix connected!

Process 1.10

Adapted this design/code to enable groups of LED's to turn on with lessening distance from sensor
http://makezine.com/projects/hotcold-leds/

LED Matrix