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Stront is a feature-packed 38-key split by zzeneg – with LCD and trackpad.
Published April 7, 2023
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The Stront – name derived from strontium in Polish, not from the Dutch meaning – is an open-source split keyboard by Evgenii Vilkov aka zzeneg.

Really happy to present my latest keyboard. It has a layout heavily adapted for my fingers, but I hope they are not so unique. Also my first time using Cirque trackpad and LCD display with a help of quantum painter and lvgl, it was very fun to work with them! – zzeneg.

Evgenii is a prolific creator with designs like the Smol, PicaChoc, or recently v2.1 of the Pica40.

His latest model, the Stront, is a low-pro split keyboard with 38 keys, only compatible with Choc v1 for now, featuring Waveshare RP2040 Zero MCUs, an LCD on one side and Cirque trackpad on the other.



  • 38 keys, low-profile Choc v1 switches
  • Waveshare RP2040 Zero
  • USB-C or TRRS interconnection between the halves
  • LCD display (1.69" 240x280 by default)
  • Cirque trackpad (40mm by default)
  • 2-key pinky columns
  • splay on ring/pinky columns
  • rotary and roller encoder
  • 3D printed cases

The LCD displays standard info like modifiers and layers, but also additional information which is delivered by a PC host application using raw HID communication. Currently supported data is time, system volume, input layout and media info.

The back plate has Horizon style cutouts for the lowest possible profile:



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Published on Fri 7th Apr 2023. Featured in KBD #119 (source).


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