Software and hardware schematics for a 3 button USB media keyboard with volume knob.
Contains laser cutter diagrams. Made for printing on a 384.0 mm long x 384.0 mm wide x 5.0 mm high square of black acrylic. I ordered mine to be cut from Ponoko, but it's probably a lot cheaper to do so at your local hackerspace. (Support your local makers!)
Instructions on how to solder all the components together.
mutebox.fzz is made with Fritzing and the Adafruit Fritzing Library
Arduino IDE project. Has the C code for flashing on the Adafruit Trinket. Instructions for setting up the IDE can be found on their page
Special shout out to this tutorial, which I based most of my work on.