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

This repository contains design files of HackPad.
HackPad is an open-source printed circuit board by shivamsinghydv, from the shivamsinghydv/side-kick repository on GitHub. It is a 2-layer board of 89 × 90 mm with 31 parts on 34 nets, routed with 442 tracks and 24 vias.
It is built around the SK6812MINI-E. Its parts include 18 diodes, 10 switches, 2 ICs and 1 connector.

| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | SK6812MINI-E | LED_SMD:LED_SK6812MINI-E_3.2x2.8mm_P1.5mm_ReverseMount | D19, D23, D24, D25, D26, D27, D28, D29, D30 |
| 9 | ~ | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 9 | ~ | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_1.00mm:PinHeader_1x02_P1.00mm_Vertical | J1 |
| 1 | ER_OLEDM0.91_1x-I2C | Display:ER_OLEDM0.91_1x-I2C | U2 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW18 |
It measures 89 × 90 mm and has 2 copper layers, 1.6 mm thick.
31 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 shivamsinghydv/side-kick repository on GitHub, at the commit this page was made from: the board is HackPad.kicad_pcb and its schematic 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 shivamsinghydv 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.

