4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers134 × 104 mm
Keypad
Starianne/midi-keypadmaking a midi-keyboard using guide for hackclub half life week 3
- Size
- 134 × 104 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 17
- Pads
- 51
- Tracks, vias
- 118, 8
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 19 Oct 2026
- Updated
- 28 Oct 2026
Overview
Keypad is an open-source printed circuit board by Starianne, from the Starianne/midi-keypad repository on GitHub. It is a 2-layer board of 134 × 104 mm with 14 parts on 17 nets, routed with 118 tracks and 8 vias.
It is built around the SK6812MINI-E. Its parts include 3 diodes, 3 switches, 1 IC and 1 connector. It belongs with the keyboards and input boards and the ESP32 boards of this library.
Main components
1README
README.mdmidi-keypad
making a midi-keyboard using guide for hackclub half life week 3, I made it with custom footprints for the touch pads which are star shaped!
Features:
- Copper pads with a custom footprint
- 3 SK6812 MINI-E Neopixels LEDs
- 3 keys to press as buttons
- an esp32 s3 for all of its computing needs
Some more previews:
Planning the shape of the keys:
Schematic:
PCB routing:
BOM:
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | , , , , , | ||
| 3 | SK6812MINI-E | LED_SMD:LED_SK6812MINI-E_3.2x2.8mm_P1.5mm_ReverseMount | D1, D2, D3 |
| 3 | SW_Push | Hackclub Footprints:Kailh Choc Low-Profile Switches | SW1, SW2, SW3 |
| 1 | Capacitive touch buttons | keypad:keypadb | J1 |
| 1 | XIAO-ESP32-S3 | Hackclub Footprints:XIAO ESP32-S3 | U1 |
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Questions
How big is the Keypad PCB?
It measures 134 × 104 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keypad use?
14 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 Keypad KiCad files?
From the Starianne/midi-keypad repository on GitHub, at the commit this page was made from: the board is keypad.kicad_pcb and its schematic keypad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keypad design in my own project?
Its repository states no licence, so its author keeps all rights: ask Starianne before reusing the design.