2 layers133.7 × 81.7 mm
2 layers125.9 × 79.6 mm
Clog v4
smores56/clog12A split 34-key board with pinky clusters
- Size
- 125.9 × 79.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 50
- Nets
- 35
- Pads
- 310
- Tracks, vias
- 458, 59
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 24 Oct 2021
- Updated
- 18 Oct 2026
Overview
Clog v4 is an open-source printed circuit board by smores56, from the smores56/clog repository on GitHub, published under the MIT licence. It is a 2-layer board of 125.9 × 79.6 mm with 50 parts on 35 nets, routed with 458 tracks and 59 vias.
It is built around the 1N4148W. Its parts include 21 switches, 17 diodes, 1 IC and 1 connector. It belongs with the nRF52 and nRF5x boards of this library.
Main components
1README
README.mdThe Clog Family
The Clog is a split 34-key keyboard with pinky clusters, the split version of the Osprette. It grew its own revisions from there, and they all share the same layout and firmware, so they live in one repo now, a folder per board:
- Clog (
v1): the original split. Pro-micro compatible, wired or bluetooth - Clog V2 (
v2): wireless-only, on a Seeeduino Xiao BLE, with splay and a roller - Clog V3 (
v3): pro-micro compatible, solder or hotswap - Clog V4 (
v4): hotswap with a switch plate, on a Xiao - Steel Toe (
steel-toe): BoardSource's V3-derived board - Sephirette (
sephirette): MX-switch split, matching the Osprette MX
Each folder has its own README with ordering details and pictures.
Every board across both families is listed at smores56/keyboards.
Firmware
The pro-micro boards (Clog, V3, Steel Toe and Sephirette) share a matrix, so they
all run the same firmware: clog in QMK and the clog shield in ZMK. Clog V2 is
wireless-only and has its own ZMK config, and V4 runs the geta shield. My
personal keymaps live in qmk_userspace and zmk-config.
Building
Most of these boards use my smores.pretty KiCad library as a
submodule, so clone with --recurse-submodules. The original Clog and the
Sephirette instead pull in Foostan's kbd and Daprice's keyswitches.pretty.
The unibody half of the family is the Osprette.
Parts
50| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 1N4148W | footprints:smd-diode | D1, D2, D3, D4, D5, D6, D7, D8, D10, D11, D12, D13, D14, D15, D16, D17 +1 |
| 17 | Switch | footprints:choc-switch-socket-only | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17 +1 |
| 5 | Val** | footprints:m2-hole | Ref**, Ref**, Ref**, Ref**, Ref** |
| 2 | MountingHole_Pad | footprints:single-pin | THT1, THT2 |
| 2 | SW_Push | footprints:reset-switch-angled-4pin | SW18, SW19 |
| 2 | SW_SPDT | footprints:power-switch | SW20, SW21 |
| 1 | AudioJack4dpb | footprints:trrs | J1 |
| 1 | LOGO | art:smores | G*** |
| 1 | LOGO | art:clogs | G*** |
| 1 | xiao-ble | footprints:xiao-ble | U1 |
The 49 most common of 50 parts.
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Questions
How big is the Clog v4 PCB?
It measures 125.9 × 79.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clog v4 use?
50 parts, built around the 1N4148W. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Clog v4 KiCad files?
From the smores56/clog repository on GitHub, at the commit this page was made from: the board is v4/pcb/clog-v4.kicad_pcb and its schematic sephirette/pcb/sephirette.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clog v4 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).