Is this the smallest keyboard implementing the PC compliment of keys? Likely! With 59 keys crammed into an area scarcely larger than three US pennies, it may well be the smallest keyboard ever made.
The PCB has been designed by TEC.IST to mount directly onto the back of a Raspberry Pi Pico, which is running some open source CircuitPython code to read the switch matrix and act as a standard USB Human Interface Device. The board design files as well as the source code for the Pico have been released on the project’s Hackaday.io page, giving you everything you need to spin up your own teeny tiny input device.
See the videos (one and two) below and more on Hackaday and hackaday.io
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