

MaxPad
My attempt at making a utility keypad with maximum functionality!
- Size
- 99.3 × 98.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 26
- Pads
- 123
- Tracks, vias
- 245, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Dec 2025
- Updated
- 7 Jul 2026
Overview
MaxPad is an open-source printed circuit board by Sukarth, from the Sukarth/MaxPad repository on GitHub, published under the MIT licence. It is a 2-layer board of 99.3 × 98.7 mm with 27 parts on 26 nets, routed with 245 tracks and 0 vias.
Its parts include 13 switches, 12 diodes, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
README
README.mdMaxPad
My attempt at making a utility keypad with maximum functionality! It's a 5x3 ortholinear macropad featuring a rotary encoder and OLED display, designed for context-aware developer workflows. The custom PCB uses a Xiao RP2040 with a 3x4 matrix layout. Designed in KiCad and OnShape. The full KiCad project files are included in this repository inside MaxPadProject.zip.
Check out the custom built desktop companion/customization app for the MaxPad here: https://github.com/Sukarth/MaxPadApp
Images
MaxPad Case

MaxPad Full Assembly

MaxPad PCB Schematic

MaxPad PCB

Rendered MaxPad PCB (3D)

License
MIT. See LICENSE for more details.
Support
If this project helps or saves you time, consider supporting my work, as it keeps projects like this free, open source, and maintained:
Can't donate? Starring the repo ⭐, reporting bugs, and sharing the project help just as much!
Built with ❤️ by Sukarth
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12 |
| 12 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | RotaryEncoder | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW13 |
| 1 | XIAO-RP2040-DIP | Seeed Studio XIAO Series Library:XIAO-RP2040-DIP | U1 |
Questions
How big is the MaxPad PCB?
It measures 99.3 × 98.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MaxPad use?
27 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 MaxPad KiCad files?
From the Sukarth/MaxPad repository on GitHub, at the commit this page was made from: the board is PCB/MaxPad.kicad_pcb and its schematic PCB/MaxPad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MaxPad design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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