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HexBoard

An open-source split by HephaestusHex: the wireless HexBoard.

KBD.news
Published August 5, 2025
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HephaestusHex published this custom wireless true split, the HexBoard. It features KS-33 switches and is driven by XIAO nRF52840 controllers.

I made this split keyboard because it was a great project for learning PCB design, ergonomics, case design, keyboard firmware, and more – HephaestusHex.

Specs

  • 36 keys (5x3+3)
  • Gateron KS-33 switches, soldered
  • Seeed XIAO nRF52840 controllers
  • 3D-printed case
  • ZMK firmware

Pic:

The keycaps, plate, and case are 3D printed.

Video demo

Resources

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Published on Tue 5th Aug 2025. Featured in KBD #196 (source).

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