Skip to the content
PCBKitNew board
2 layers99.3 × 98.7 mmMaxPad, the printed circuit board in 3D

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.md

MaxPad

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 Case

MaxPad Full Assembly

MaxPad Full Assembly

MaxPad PCB Schematic

MaxPad PCB Schematic

MaxPad PCB

MaxPad PCB

Rendered MaxPad PCB (3D)

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:

GitHub Sponsors Ko-fi Buy Me a Coffee

Can't donate? Starring the repo ⭐, reporting bugs, and sharing the project help just as much!


Built with ❤️ by Sukarth

Parts

27
QtyValueFootprintReferences
121N4148Diode_THT:D_DO-35_SOD27_P7.62mm_HorizontalD1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12
12SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12
1Conn_01x04_PinConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ1
1RotaryEncoderRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW13
1XIAO-RP2040-DIPSeeed Studio XIAO Series Library:XIAO-RP2040-DIPU1

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).

Similar boards

  • 2 layers47.6 × 27.3 mmMmc usb 1, the printed circuit board in 3D

    Mmc usb 1

    rusefi/rusefi

    rusefi - GPL internal combustion engine control unit

    27 parts1.2k
  • 2 layers77.4 × 77.4 mmCORAZON LEDS CON FADE, the printed circuit board in 3D

    CORAZON LEDS CON FADE

    hackclub/OnBoard

    💡 Join 1,000 teenagers and make your first PCB with a $100 grant!

    27 parts915
  • 2 layers44.2 × 29.3 mmI2c tiny usb, the printed circuit board in 3D

    I2c tiny usb

    harbaum/I2C-Tiny-USB

    Cheap and simple I²C to USB interface

    27 parts454
  • 2 layers22 × 42 mmNvme bm to e, the printed circuit board in 3D

    Nvme bm to e

    CRImier/MyKiCad

    My KiCad boards. Can't be bothered uploading individually anymore, so here you go.

    27 parts253GPL-3.0
  • 2 layers80 × 61 mmPicoProducer, the printed circuit board in 3D

    PicoProducer

    pjgpetecodes/pico-streamdeck

    This project is an OBS Controller using a Raspberry Pi Pico and CircuitPython.

    27 parts230MIT
  • 2 layers186 × 45 mmAddOnD, the printed circuit board in 3D

    AddOnD

    freeDSP/freeDSP-aurora

    freeDSP ADAU1452 with 8 analog input, 8 analog outputs, S/P-DIF I/O, ADAT I/O, USB Audio Class2, WiFi, Bluetooth

    27 parts226CC-BY-SA-4.0
  • 2 layers29.6 × 40.6 mmDbwifi revB, the printed circuit board in 3D

    Dbwifi revB

    ugcs/ddc

    Drone Show Software is software designed for drone shows, allowing flight path planning as well as control of dozens of drones simultaneously in a synchronized manner.

    27 parts223