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CYOA Ortho

The Choose Your Own Adventure Ortho (or CYOA) is a Pro Micro compatible ortholinear PCB by STHLM kb – with lots of snap-off parts.
Published February 29, 2024
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Moses Hoyt aka mojibber of STHLM kb announced a new board called the Choose Your Own Adventure Ortho (or CYOA Ortho for short).

Meet CYOA Ortho - a flexible way of trying out many ortho layouts. The PCB starts as 5x12 but you can break off rows or columns (or both) to get exactly what you want - all the way down to 3x3! – mojibber.

Yes! It's a 5 row x 12 column board to begin with but thanks to the perforations on the PCB you can make it almost any size down to 3x3. So you can build ortho layouts like the Preonic (5x12), Planck (4x12), Gherkin (3x10) or even a macro or num pad.


Rotary encoders and 2u keys are also possible in some locations.


  • 9-60 keys :)
  • ortholinear layout
  • MX or Choc switches, soldered
  • Pro Micro footprint
  • optional encoder
  • various bottom row options



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Published on Thu 29th Feb 2024. Featured in KBD #157 (source).


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