Using the MaKey MaKey you can make anything into a key (get it?) just by connecting a few alligator clips. The MaKey MaKey is an invention kit that tricks your computer into thinking that almost anything is a keyboard. This allows you to hook up all kinds of fun things as an input.
The MaKey MaKey uses high resistance switching to detect when you've made a connection even through materials that aren't very conductive (like leaves, pasta or people). This technique attracts noise on the input, so a moving window averager is used to lowpass the noise. The on-board ATMega32u4 communicates with your computer using the Human Interface Device (HID) protocol which means that it can act like a keyboard or mouse.
- /Firmware - Example firmware files
- /Hardware - All Eagle design files (.brd, .sch)
- /Production - Test bed files and production panel files
WIG-11511 - Standard kit, OEM packaging
The standard kit includes the MaKey MaKey HID board, alligator clips, jumper wires, and a Mini-USB cable in OEM packaging.
WIG-11519 - Deluxe kit, OEM packaging
The deluxe kit includes everything found in the standard kit along with an additional pack of alligator clips and a roll of copper wire (all in OEM packaging).
RTL-11437 - Standard kit, retail packaging
This kit contains everything found in the standard kit and comes in retail-ready plastic packaging.
The hardware is released under Creative Commons Share-alike 3.0.
All other code is open source hardware so please feel free to do anything you want with it; you buy me a beer if you use this and we meet someday (Beerware license).