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Daniel Haarhoff shared his neuro36, a small 36-key split travel keyboard.
Published September 13, 2023
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The neuro36 by Daniel Haarhoff (aka erkannt/mit_verlauf) is a small 36-key split keyboard optimized for travel.

I wanted a keyboard I could travel with. I need 36 keys and like to have larger keys to rest my thumbs on (probably due my journey having been Ergodox -> gergo) – Daniel.

With its low-profile case and switches, and the nice Chicago steno thumb caps, the neuro36 has definitely reached this goal.



  • 36 keys
  • low profile, Choc-spaced
  • hotswap or soldered (on main 30 keys)
  • reversible PCB
  • Seeed XIAO RP2040 MCU
  • remaining pins broken out on right hand (hope was to add trackball)
  • low-profile printed case
  • press-fit travel protector
  • thumb keys can be soldered in either orientation

Pic: Silkscreen with real neurons (EM image taken by the author's partner)

Silkscreen with real neurons (EM image taken by the author's partner)

The case is printable without supports, however, the travel protector needs them. Make sure you have good bed adhesion as a warped print will give you a wobbly case. Other than that:

I picked a very small diode footprint by accident. I'd suggest going for something larger if you are up for tweaking the KiCAD project – Daniel.


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Published on Wed 13th Sep 2023. Featured in KBD #202309.


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