2 layers98 × 27 mm
2 layers45.5 × 70 mm
Corepadv1
albertphu07/corepad3A Compact, Open-Source Macropad Built for Tinkerers and Creators (https://ko-fi.com/corepad)
- Size
- 45.5 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 5
- Nets
- 14
- Pads
- 33
- Tracks, vias
- 50, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Jun 2026
- Updated
- 29 Aug 2026
Overview
Corepadv1 is an open-source printed circuit board by albertphu07, from the albertphu07/corepad repository on GitHub. It is a 2-layer board of 45.5 × 70 mm with 5 parts on 14 nets, routed with 50 tracks and 0 vias.
Its parts include 3 switches and 2 ICs. It belongs with the keyboards and input boards and the RP2040 boards of this library.
README
README.mdcorepad
Updated Official STL Files here https://github.com/albertphu07/CoreCase
The corepad is a macro pad designed to combine keybinds into s single key. The project runs on the Seeed Studio XIAO RP2040 microcontroller and uses KMK Firmware built with CircuitPython.
Key Features
- many sperate layers (your choice).
- OLED display to show the active mode.
- Open-source code using KMK, allowing quick modifications without needing to compile firmware.
Bill of Materials (BOM)
| Qty | Part | Effective Cost |
|---|---|---|
| 1x | Seeed XIAO RP2040 (un-Soldered) | $10.00 |
| 1x | 0.91" OLED Display | ~$4.00 |
| 3x | White Blank DSA Keycaps | $0.99 |
| 4x | M3x5mmx4mm Heat-Set Inserts | ~$0.99 |
| 1x | PCB | $6.32 |
| 1x | Soldering Iron | $9.99 |
| 3x | Holy Panda Switches | 0.621 |
| 6x | HOLTITE | 5.59 |
| Effective Build Cost Before Tax | *~$37.88 |
Notes
- All listed parts currently have free shipping (execpt for pcb).
- Keycaps can be substituted with 3D-printed versions to reduce cost.
- PCB will be brought from jlbpcb or OSHPARK
- Prices are subject to change due to shipping fees and tax
- Materials Needed: 3x Switches, 1X Seed XIAO RP2040, 1x OLED DISPLAY, 3x White Blank DSA Keycaps, 4x brass heated inserts, 4x Screws for the heated inserts!
- I Know That corepad V1 Documentation is a little crap but once i start working on the firmware a bit more ill clean it up later on :)
Parts
5| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3 |
| 1 | ER_OLEDM0.91_1x-I2C | Display:ER_OLEDM0.91_1x-I2C | U2 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
Questions
How big is the Corepadv1 PCB?
It measures 45.5 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Corepadv1 use?
5 parts. 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 Corepadv1 KiCad files?
From the albertphu07/corepad repository on GitHub, at the commit this page was made from: the board is pcb/corepadv1.kicad_pcb and its schematic pcb/corepadv1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Corepadv1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask albertphu07 before reusing the design.
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