8-key mechanical keyboard where you type using piano-style chords of binary values that represent the ASCII character you want to type. Completely useless as an actual keyboard as it doesn't have any keys other than the basic ASCII table (not CTRL, ALT, etc etc). Mostly made as a joke for my local hackerspace but people actually found it fun to try type on, so I turned the prototype into a nicer package and cleaned up the code. Uses a Raspberry Pi Pico W as the controller, and some hacky CircuitPython with the Adafruit_HID library to emulate a keyboard over USB.