4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers19 × 52.5 mm
FirstPCB
ChunHan08/FirstPCBBOM: 3x white blank DSA keycaps 3x MX-Style switches 1x XIAO RP2040 1x Case (2 printed parts) 3x SK6812 MINI-E LEDs 4x M3x16mm screws 4x M3x5mx4mm heatset inserts
- Size
- 19 × 52.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 7
- Nets
- 18
- Pads
- 41
- Tracks, vias
- 42, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Jul 2026
- Updated
- 9 Jul 2026
Overview
FirstPCB is an open-source printed circuit board by ChunHan08, from the ChunHan08/FirstPCB repository on GitHub. It is a 2-layer board of 19 × 52.5 mm with 7 parts on 18 nets, routed with 42 tracks and 0 vias.
It is built around the SK6812MINI-E. Its parts include 3 diodes, 3 switches and 1 IC.
Main components
1README
README.mdMy very first PCB!
CAD model:
Schematic:
PCB:
BOM: 3x white blank DSA keycaps 3x MX-Style switches 1x XIAO RP2040 1x Case (2 printed parts) 3x SK6812 MINI-E LEDs 4x M3x16mm screws 4x M3x5mx4mm heatset inserts
Parts
7| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | SK6812MINI-E | LED_SMD:LED_SK6812MINI-E_3.2x2.8mm_P1.5mm_ReverseMount | D1, D2, D3 |
| 3 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
Questions
How big is the FirstPCB PCB?
It measures 19 × 52.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the FirstPCB use?
7 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 FirstPCB KiCad files?
From the ChunHan08/FirstPCB repository on GitHub, at the commit this page was made from: the board is FirstPcb/PCB/First PCB.kicad_pcb and its schematic FirstPcb/PCB/First PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the FirstPCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask ChunHan08 before reusing the design.
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