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Tools, APP Software Used etc.

KiCAD

Kicad

Description

RP2350A Macropad

A fully customizable 3x3 mechanical macropad built around the Raspberry Pi RP2350A and laid out in KiCad. It enumerates over USB as an ordinary keyboard, so it needs no drivers, and its keymap can be remapped straight from a web browser over the Web Serial API.

A 1.14 inch LCD shows the current layout, live temperature and humidity, and the keys as they are pressed, and three RGB LEDs show status. Beyond plain shortcuts, a key can be set as a macro that runs a script on the computer through a small companion daemon, with a color icon that also shows on the board's screen.

The firmware is C on the Pico SDK with TinyUSB, the keymap is stored in the QSPI flash, and the whole project (KiCad files, firmware and web programmer) is open source. A full DIY build comes to around $5 to $10 in small quantities.

Code

rp2350-macropad

https://github.com/arkandas/rp2350-macropad

Schematic and Layout

schematic

RP2350A_Macropad-schematic.pdf

Download Gerbers Download BOM(Bill of materials)

May 28,2026

507 views

RP2350A Macropad

2 Layers PCB 99.7 x 71.4 mm FR-4, 1.6 mm, 1, HASL with lead, Black Solder Mask, White silkscreen

A fully customizable RP2350A mechanical macropad, remappable from the browser over USB, with a live LCD and color macro icons

507

Published: May 28,2026

Standard PCB

Download Gerber file 6

BOM(Bill of materials)

PCBWay Donate 10% cost To Author

File Last Updated: 2026/08/06 (GMT+8)

File update record

2026-08-0622:57:22

Parts List (BOM) is updated.

2026-08-0622:57:22

Gerber file is updated.

Only PCB

PCB+Assembly

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Project images are for reference only. Actual production is based on the manufacturing files on the project page. Please review the designer's notes (e.g., PCB thickness) and select the appropriate options. PCBWay is not responsible for issues caused by unsuitable parameter selections.
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