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

rusty-keys のファームウェアのサンプルコードと基板の設計データ
Rusty keys is an open-source printed circuit board by KOBA789, from the KOBA789/rusty-keys repository on GitHub, published under the MIT licence. It is a 2-layer board of 91 × 55 mm with 15 parts on 43 nets, routed with 50 tracks and 17 vias.
Its parts include 6 diodes, 6 switches, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
KiCad 6.0.4 を用いて設計しています。
裏面のロゴデータが含まれていないことが唯一の違いです。
※表面の "RustyKeys" ロゴは含まれています。
調達元は参考情報です。同型・互換の製品であれば他のパーツを使ってもよいでしょう。
| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6 |
| 6 | SW_Push | Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.00u | SW1, SW2, SW3, SW4, SW5, SW6 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J1 |
| 1 | Pico | RPi_Pico:RPi_Pico_SMD_TH | U1 |
The 14 most common of 15 parts.

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

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It measures 91 × 55 mm and has 2 copper layers, 1.6 mm thick.
15 parts. 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 KOBA789/rusty-keys repository on GitHub, at the commit this page was made from: the board is pcb/rusty_keys.kicad_pcb and its schematic pcb/rusty_keys.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
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).