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 × 65 mm
Pacpad
lxsh-S/Pacpad1Learning to make my own macropad
- Size
- 68 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 16
- Pads
- 53
- Tracks, vias
- 91, 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 13 Sep 2026
- Updated
- 1 Nov 2026
Overview
Pacpad is an open-source printed circuit board by lxsh-S, from the lxsh-S/Pacpad repository on GitHub. It is a 2-layer board of 68 × 65 mm with 9 parts on 16 nets, routed with 91 tracks and 4 vias.
It is built around the SK6812MINI-E. Its parts include 5 switches, 2 ICs and 2 diodes. It belongs with the keyboards and input boards of this library.
Main components
1README
README.mdPacpad
Pacpad is a 4-key macropad with a rotatory encoder, an OLED screen and 2LEDs !!!!!!
I've used the KMK firmware for this macropad as python is way more easier than C.
firmware fucntions
- Media control(prev track, play/pause, next track) with the SW2, SW3, and SW4 keys respectively
- Volume control with the rotatory encoder(volume up, volume down and mute)
- The SW1 key is binded with the F11 key for fullscreen
PCB
This is my first ever PCB that I made in Kicad. I changed the design like 4 times lol T_T
PCB:
Schematic:
3D:
CAD
This case was made in fusion360(I dualbooted win11 for that :))
-
Top:
-
Bottom:
Note->The hole at the bottom of this design is for a screw that I already have with me (It is to hold the PCB at one place) -
Knob:
Used the same as orpheuspad pad -
Assembled:
BOM
- 4x MX-Style switches
- 4x Black DSA Keys
- 1x EC11 Rotatory encoder
- 1x 0.91 inch OLED display
- 2x SK6812MINI-E LEDs
- 1x Seed Xiao RP2040
- PCB made from the gerbers in the repo
- The top, bottom cases with the volume knob to be 3d printed from the
Productionfolder
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 2 | SK6812MINI-E | pacpad_F:SK6812MINI-E_fixed | D1, D2 |
| 1 | ER_OLEDM0.91_1x-I2C | Display:ER_OLEDM0.91_1x-I2C | U2 |
| 1 | MOUDLE-SEEEDUINO-XIAO | pacpad_F:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm_CircularMountingHoles | SW5 |
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Questions
How big is the Pacpad PCB?
It measures 68 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pacpad use?
9 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 Pacpad KiCad files?
From the lxsh-S/Pacpad repository on GitHub, at the commit this page was made from: the board is PCB/pacpad.kicad_pcb and its schematic PCB/pacpad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pacpad design in my own project?
Its repository states no licence, so its author keeps all rights: ask lxsh-S before reusing the design.