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

A 50% ortholinear mechanical keyboard PCB with three extra keys
Mech50-keyboard is an open-source printed circuit board by andywarburton, from the andywarburton/Mech-50 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 256 × 96 mm with 196 parts on 150 nets, routed with 2,065 tracks and 34 vias.
It is built around the SK6812MINI-E. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
A 50% ortholinear mechanical keyboard PCB with three extra keys
** PLEASE FOR THE LOVE OF GOD DO NOT ORDER THIS KEYBOARD PCB, IT'S NOT TESTED. SEE NOTES BELOW !! **
Update: 14th October 2024
| Qty | Value | Footprint | References |
|---|---|---|---|
| 62 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D-A0, D-A1, D-A2, D-A3, D-A4, D-A5, D-A6, D-A7, D-A8, D-A9, D-A10, D-A11, D-B0, D-B1, D-B10, D-B11 +46 |
| 62 | SK6812MINI | Keebio-Parts:SK6812-MINI-E | RGB-0, RGB-1, RGB-2, RGB-10, RGB-11, RGB-12, RGB-13, RGB-14, RGB-15, RGB-16, RGB-17, RGB-18, RGB-19, RGB-20, RGB-21, RGB-22 +46 |
| 61 | MX | Keebio-Parts:Triple-Dual-1u-LED-flip | S-A0, S-A1, S-A2, S-A3, S-A4, S-A5, S-A6, S-A7, S-A8, S-A9, S-A10, S-A11, S-B0, S-B1, S-B10, S-B11 +45 |
| 9 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H10, H11, H12, H13 |
| 1 | Elite-C | Keebio-Parts:Elite-C-castellated-29pin-holes | U1 |
| 1 | MX | Keebio-Parts:Triple-Dual-2u-LED | S-E6 |

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

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It measures 256 × 96 mm and has 2 copper layers, 1.6 mm thick.
196 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 andywarburton/Mech-50 repository on GitHub, at the commit this page was made from: the board is Mech50-keyboard/Mech50-keyboard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).