Beyond the Wixel, you will need a suitable input device to convert. We used a Tandy Deluxe Joystick for this tutorial, but any device that uses pushbuttons, switches, and/or potentiometers for input will probably work.
The tools and supplies you require will probably depend on your particular situation, but might include:
Many of the tools are available in the Tools section of the Pololu web site.
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