Keyboard Builders' Digest
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Keyboard Builders' Digest / Projects

Pimple Smile

Protieusz keeps updating keyboard models with trackballs. His latest project is the Pimple Smile.
Published May 22, 2024
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The Pimple Smile is an upgraded Smile36 by Protieusz, the encoder of the original keyboard is replaced by a trackball.

This is the Pimple Smile. My flagship Smile-36 upgraded with a 25mm trackball – Protieusz.

The author's Smile36 is a cute sub-40% keyboard with a layout inspired by Policium's GRIN layouts.


  • 36 keys, Grin layout
  • MX, soldered
  • RP2040-Zero
  • 25mm trackball



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Published on Wed 22nd May 2024. Featured in KBD #166.


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