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

vipad is a 4x4 macropad powered by qmk/vial
Macropad is an open-source printed circuit board by Tymon3310, from the Tymon3310/vipad repository on GitHub. It is a 2-layer board of 19.5 × 3.1 mm with 45 parts on 34 nets.
It is built around the SK6812MINI-E. Its parts include 25 diodes, 18 switches and 2 ICs. It belongs with the keyboards and input boards of this library.
vipad is a 4x4 macropad powered by vial firmware
It also has 2 encoders (knobs), oled screen and rgb leds
Overall render:

Schematics:

PCB:

Bill of materials:
| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22 +6 |
| 16 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_Plate | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16 |
| 3 | SK6812MINI-E | footprints:SK6812MINI-E_fixed | D23, D24, D25 |
| 2 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW17, SW18 |
| 1 | ER_OLEDM0.91_1x-I2C | footprints:SSD1306-0.91-OLED-4pin-128x32 | U2 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
It measures 19.5 × 3.1 mm and has 2 copper layers, 1.6 mm thick.
45 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 Tymon3310/vipad repository on GitHub, at the commit this page was made from: the board is PCB/macropad.kicad_pcb and its schematic PCB/macropad.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 Tymon3310 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.

