Hypothenar keyboard
About the Hypothenar keyboard PCB
Hypothenar keyboard is an open source PCB design by lytedev, published on GitHub. It is a 2-layer board measuring 144.2 × 110.9 mm, with 59 components from 28 distinct parts.
By type, the board carries 28 switches, 17 connectors, 1 battery holder and 1 transformer.
It belongs with the keyboards and power & battery designs in this gallery.
From the project
Like the thenar keyboard but built for pick-and-place
The v1 redesign — chip-direct nRF52840 module + I/O expanders, designed for JLCPCB PCBA assembly. See docs/v1-design.md (in the repo root) for architectural decisions and BOM rationale.
This directory is a work-in-progress. The PCB hasn't been drawn yet.
- Primary: - Mirror (GitHub): - Sibling model: thenar — the hand-solderable original this design derives from (GitHub mirror)
Hypothenar keyboard bill of materials (BOM)
59 components, 28 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C1 | passive_0603 | P1 |
| 1 | C2 | passive_0603 | P2 |
| 1 | C3 | passive_0603 | P3 |
| 1 | C4 | passive_0603 | P4 |
| 1 | C5 | passive_0603 | P5 |
| 1 | C6 | passive_0603 | P6 |
| 1 | C7 | passive_0603 | P7 |
| 1 | C8 | passive_0603 | P8 |
| 1 | R1 | passive_0603 | P9 |
| 1 | R2 | passive_0603 | P10 |
| 1 | R3 | passive_0603 | P11 |
| 1 | R4 | passive_0603 | P12 |
| 1 | R5 | passive_0603 | P13 |
| 1 | R6 | passive_0603 | P14 |
| 1 | R7 | passive_0603 | P15 |
| 1 | R8 | passive_0603 | P16 |
| 1 | D1 | passive_0603 | P17 |
| 1 | ms88sf3 | ms88sf3 | 19.051 |
| 2 | MCP23017 | MCP23017_SOIC-28W | 19.052, 19.053 |
| 1 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | 19.054 |
Show 8 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USBLC6-2SC6 | USBLC6-2SC6_SOT-23-6 | 19.055 |
| 1 | TP4056 | TP4056_SOP-8 | 19.056 |
| 1 | XC6206P332MR | XC6206_SOT-89-3 | 19.057 |
| 1 | BATTERY | battery_pads | BT1 |
| 28 | — | PG1350 | S1, S2, S3, S4, S5, S6, S7, S8 +20 |
| 1 | — | SPDT_C128955 | T1 |
| 1 | — | ResetSW | _1 |
| 4 | — | Hole | _2, _3, _4, _5 |
Hypothenar keyboard design files
The KiCad project lives in the lytedev/hypothenar-keyboard repository on GitHub; these links point at the commit this page was built from.
Hypothenar keyboard: common questions
How big is the Hypothenar keyboard PCB?
The Hypothenar keyboard measures 144.2 × 110.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Hypothenar keyboard?
59 components, from 28 distinct parts. The full bill of materials is listed on this page.
Where can I download the Hypothenar keyboard design files?
From the lytedev/hypothenar-keyboard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Hypothenar keyboard design in my own project?
The repository has no license, so all rights stay with lytedev. Use it as a reference, and ask the author before reusing the design.
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