4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers68.6 × 84.6 mm
Okfinaltry
soumil210/SoumilHackpad- Size
- 68.6 × 84.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 32
- Pads
- 124
- Tracks, vias
- 447, 65
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 31 Mar 2026
- Updated
- 24 Jun 2026
Overview
Okfinaltry is an open-source printed circuit board by soumil210, from the soumil210/SoumilHackpad repository on GitHub. It is a 2-layer board of 68.6 × 84.6 mm with 30 parts on 32 nets, routed with 447 tracks and 65 vias.
It is built around the SK6812MINI-E. Its parts include 18 diodes, 10 switches, 1 IC and 1 connector.
Main components
1README
README.mdSoumilHackpad
project repository.
Project Overview
- Hackpad name: SoumilHackpad
- Creator: soumil
- Description: My macropad has 9 keys, a small OLED, and a rotary encoder. I can use it for macros, volume control, or just for fun. :)
Repository Structure
CAD/- Full assembled hackpad model :)PCB/- PCB source design filesFirmware/- Firmware source filesproduction/- Manufacturing-ready outputs
Screenshots
1. Overall Hackpad
2. Schematic
3. PCB
BOM
| Item | Qty | Notes |
|---|---|---|
| Seeed XIAO RP2040 (Through-hole, unsoldered) | 1 | Main MCU |
| 1N4148 Diodes (through-hole) | 9 | Through-hole diodes |
| MX-Style switches | 9 | Main key switches |
| EC11 Rotary encoders | 1 | Rotary input |
| 0.91 inch OLED display | 1 | Pin order must be GND-VCC-SCL-SDA |
| White blank DSA keycaps | 9 | For 16-key layout |
| SK6812 MINI-E LEDs | 9 | Per-key lighting |
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 9 | SK6812MINI-E | footprints:SK6812MINI-E_fixed | D19, D20, D21, D22, D23, D24, D25, D26, D27 |
| 9 | SW_Push_45deg | footprints:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U2 |
| 1 | OLED_128x32 | footprints:SSD1306-0.91-OLED-4pin-128x32 | J1 |
| 1 | RotaryEncoder | footprints:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW11 |
Questions
How big is the Okfinaltry PCB?
It measures 68.6 × 84.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Okfinaltry use?
30 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.
Where can I download the Okfinaltry KiCad files?
From the soumil210/SoumilHackpad repository on GitHub, at the commit this page was made from: the board is PCB/Okfinaltry.kicad_pcb and its schematic PCB/Okfinaltry.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Okfinaltry design in my own project?
Its repository states no licence, so its author keeps all rights: ask soumil210 before reusing the design.
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