Microcontroller boards
ExpressLRS Hardware
by ExpressLRS
Open-source PCB designs, schematics, and 3D-printable cases for ExpressLRS TX modules and receivers
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Open-source PCB designs, schematics, and 3D-printable cases for ExpressLRS TX modules and receivers
by peej
5x12 ortholinear through-hole component keyboard PCB for standard 60% cases
by UzixLS
ZX Spectrum CPLD-based clone for rubber case
by limpkin
CDM324 Amplification Backpack, With Case and Simulations
by thawney
Pedal Pi V2 by Thawney is an all new and regularly maintained Pedal-Pi by electrosmash; a lo-fi programmable guitar pedal that works with the Raspberry Pi ZERO Board. My repository contains all of the information needed to create your own board from scratch unlike Pedal Pi who only share effect code.
by c0de111
Battery-powered e-paper sign: room signage, sensor graphs, home automation, or anything over Wi-Fi. Wakes by real-time clock, NFC tap, or button. Raspberry Pi Pico W firmware, custom PCB, and 3D-printed case included.
Every project listed here belongs to its author and is linked to its original repository. Licences are read from the repository metadata and summarised for convenience — check the licence file in the project itself before you manufacture or redistribute a design. ProtoFlow does not host, mirror or verify these files. Index last rebuilt 2026-09-21.