
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards

My endgame split ergo of this month
Switch42 is an open-source printed circuit board by zk-phi, from the zk-phi/gemini-keyboard repository on GitHub. It is a 2-layer board of 135.4 × 80.1 mm with 89 parts on 68 nets, routed with 724 tracks and 51 vias.
It is built around the SK6812MINI-E. Its parts include 26 inductors, 21 switches, 20 diodes, 1 IC and 1 connector. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | D | phi-kbd-library:D_SMD-irreversible | D1, D2, D3, D4, D5, D10, D11, D12, D14, D15, D16, D17, D18, D19, D20, D21 +4 |
| 20 | SK6812MINI | phi-kbd-library:SK6812MINI-irreversible | L1, L2, L3, L4, L5, L10, L11, L12, L14, L15, L16, L17, L18, L19, L20, L21 +4 |
| 16 | SW_PUSH | phi-kbd-library:MX_1.00u-irreversible | SW2, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW15, SW16, SW17, SW19, SW20, SW21 |
| 6 | SK6812MINI | phi-kbd-library:SK6812MINI-underglow-irreversible | L22, L23, L24, L25, L26, L27 |
| 4 | Val** | phi-kbd-library:M2_SCREW_HOLE | Ref**, Ref**, Ref**, Ref** |
| 2 | SW_PUSH | phi-kbd-library:MX_1.25u-irreversible | SW3, SW18 |
| 1 | MJ-4PP-9 | phi-kbd-library:MJ-4PP-9-irreversible | J1 |
| 1 | ProMicro | phi-kbd-library:ProMicro_Reversed_Conthrough-irreversible | U1 |
| 1 | SW_PUSH | phi-kbd-library:MX_1.75u-irreversible | SW22 |
| 1 | SW_PUSH | phi-kbd-library:ResetSW-irreversible | SW1 |
| 1 | SW_PUSH | phi-kbd-library:MX_1.50u-irreversible | SW4 |
The 73 most common of 89 parts.
It measures 135.4 × 80.1 mm and has 2 copper layers, 1.6 mm thick.
89 parts, built around the SK6812MINI-E. 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.
From the zk-phi/gemini-keyboard repository on GitHub, at the commit this page was made from: the board is left_pcb/switch42.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask zk-phi before reusing the design.

google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards

Bastardkb/Dilemma
The Dilemma is a vertical stagger low-profile keyboard with mods.

Pwnsat/FlatSat
Flatsat v1.0 is a hardware based platform for aerospace cybersecurity research

adamws/kicad-kbplacer
KiCad plugin for automatic keyboard's key placement and routing

imchipwood/dumbpad
Simple 4x4 numpad with rotary encoder. Powered by QMK via ATmega32u4 Pro Micro

makerforgetech/modular-biped
An open source framework for creating a bipedal modular companion robot.

