so I built her a "Button Box" based around an Arduino. Open source, hackable, and made by hand. This post is just a quick summary - I'll be doing a much more in depth blog post about it at some ...

The Firmata block (Firmata is a protocol for communicating ... the pin show up on the Firmata component I wired two buttons connecting an Arduino’s pins 7 and 8 to ground, each with a 10K ...

and a set of three buttons. To help keep things organized, all of the components, including the Arduino, can be attached to a baseplate using included screws. The Arduino Plug and Make Kit ...