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

BOM: 8x Cherry MX Switches 2x SK6812 MINI Leds 1x XIAO RP2040 8x Blank DSA Keycaps 4x M3x16 Bolt 1x EC11 Rotary encoder 1x 0.91 inch OLED displays
Hackpad is an open-source printed circuit board by Neya-M, from the Neya-M/Hackpad repository on GitHub. It is a 2-layer board of 133.9 × 99 mm with 23 parts on 25 nets, routed with 149 tracks and 2 vias.
It is built around the SK6812MINI-E. Its parts include 11 diodes, 9 switches, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
FINISHED IT, DEMO HERE :D
https://github.com/user-attachments/assets/ae1be2d1-e361-4396-a303-68cf132932a8
This is my Hackpad! It has 8 buttons, 1 rotary encoder, 2 RGBs, and an OLED screen.
I made it to control music and type emoticons :)
BOM: 8x Cherry MX Switches 2x SK6812 MINI Leds 1x XIAO RP2040 8x Blank DSA Keycaps 4x M3x16 Bolt 1x EC11 Rotary encoder 1x 0.91 inch OLED displays
| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D3, D4, D5, D6, D7, D8, D9, D10, D11 |
| 8 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW9 |
| 2 | SK6812MINI | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D1, D2 |
| 1 | Conn_01x04 | Display:SSD1306-0.91-OLED-4pin-128x32 | J1 |
| 1 | LOGO | LOGO | G*** |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW11 |
| 1 | XIAO-RP2040-DIP | Module:XIAO-RP2040-DIP | U1 |
It measures 133.9 × 99 mm and has 2 copper layers, 1.6 mm thick.
23 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 Neya-M/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 states no licence, so its author keeps all rights: ask Neya-M before reusing the design.

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

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