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HE60 PCB

The HE60 is an open-source 60% Hall-effect keyboard PCB by peppapig.

KBD.news
Published April 25, 2025
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As already teased earlier, Pontakorn Prasertsuk aka peppapig/peppapighs released the HE60, a 60% Hall-effect PCB with split spacebar support, and a Tsangan bottom row layout.

This is my latest project in my ongoing Hall-effect keyboard obsession. Inspired by open-source projects like GH60, Waffling60, and Macrolev, I created this design with the hope that it will serve as a useful reference for anyone interested in building their own Hall-effect PCB – Pep.

The PCB was developed with a focus on reducing fabrication costs. The current version costs ~80USD for 2 boards using JLCPCB economy PCBA. To achieve this, the author removed many components from previous designs that he found had little to no impact on PCB performance.

Pic:

The HE60 runs on the libhmk firmware, previously released by Pep. The software latency (from input detection to USB packet transmission) averaged around 0.4ms – "not bad for a PCB polling at 1000Hz", according to the designer.

Pic:

Specs

  • 61-65 keys, Tsangan bottom row
  • split spacebar support
  • HE switches
  • on-board STM32F446RET6 MCU
  • Support for GH60 tray mount cases (KBDfans Tofu60 Redux, Holy60)
  • libhmk firmware
  • hmkconf web-based configurator

Pic:

Resources

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Published on Fri 25th Apr 2025. Featured in KBD #190 (source).

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