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The VColChoc44 is an Atreus-like low-profile monoblock split by jpconstantineau with on-board RP2040.
Published October 16, 2021

My thinnest, most portable keyboard! – jpconstantineau.

This open-source keyboard, inspired by the Atreus and based on the PyKey60, features an on-board RP2040 and CircuitPython for easy keymap update.


  • 44 keys, low-profile Kailh Choc with hotswap sockets
  • on-board RP2040 controller with CircuitPython
  • 14 mm height from desk to top of keycaps
  • speaker/buzzer on board

Why did I create a custom board instead of using a Raspberry Pi Pico? The Pico wouldn't allow for the thinnest keyboard. Its position would need room below the PCB and thus would also need a bottom plate to enclose it all, defeating the whole point of an ultra-low profile keyboard.

Github repo:

Published on Sat 16th Oct 2021. Featured in KBD #48 (source).

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