Microcontroller boards
ExpressLRS Hardware
by ExpressLRS
Open-source PCB designs, schematics, and 3D-printable cases for ExpressLRS TX modules and receivers
415 142No license
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Download ProtoFlow112 published boards whose schematic and layout source is public — KiCad, EAGLE, Altium and EasyEDA projects you can read, fork and build on. Every entry links to the original repository and names its licence.
by ExpressLRS
Open-source PCB designs, schematics, and 3D-printable cases for ExpressLRS TX modules and receivers
by agamrossen
Open-source acoustic drone detection. It hears the propellers, not the radio, so it works against fibre-optic FPV aircraft that emit no signal at all.
by MilosRasic98
Open-source device for measuring cardiograpgy signals with a GUI for easier handling and additional software for analyzing the data.
by biomurph
Repository for Open Source Mouse Firmware and Hardware
by ChrisChrisLoLo
The magnetic, modular, 20-key macropad that can join together to form an ortholinear board
by ChrisChrisLoLo
4x10 ortholinear with an LCD in the middle. Uses the Raspberry Pi Pico, as well as Rust firmware
KiCad sourceby ChrisChrisLoLo
A 4x10 hotswap ortholinear keyboard that supports multiple configurations.
by luciobaiocchi
Offline group-safety mesh for hikers: ESP32 + GPS + LoRa, with a firmware-in-the-loop simulator and 3D replay viewer
by RicardoJCMarques
EasyCAM5000 is collection of CAM tools for Makers. It includes EasyTrace5000 for PCB fabrication/prototyping and EasyShape5000 for 2.5-3D milling + 4th axis. It's 100% web-based, client-side, open-source and free to use.
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.