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

hackpad
Hackpad is an open-source printed circuit board by Magicninja7, from the Magicninja7/hackpad repository on GitHub, published under the MIT licence. It is a 2-layer board of 78 × 84 mm with 14 parts on 19 nets, routed with 148 tracks and 12 vias.
It is built around the SK6812MINI-E. Its parts include 8 switches, 4 diodes and 1 IC. It belongs with the RP2040 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 4 | SK6812MINI | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D1, D2, D3, D4 |
| 1 | SSD1306 | Display:Adafruit_SSD1306 | Brd1 |
| 1 | XIAO-RP2040-DIP | OPL:XIAO-RP2040-DIP | U1 |
It measures 78 × 84 mm and has 2 copper layers, 1.6 mm thick.
14 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 Magicninja7/hackpad repository on GitHub, at the commit this page was made from: the board is pcb/hackpad.kicad_pcb and its schematic pcb/hackpad.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).

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

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