REFERENCE DESIGNS

Open hardware, with the files to prove it.

512 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.

Boards indexed

512

With a design page

512

KiCad projects

233

Battery Powered STM32 Board With USB

by mohamedboubaker

A Custom STM32 board that runs on a battery with MCP73831 and is easily programmable with USB thanks to the CP2102 USB-to-UART chip.

13 3MIT

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Microcontroller boards98 Keyboards & input devices69 Retro computing36 Other boards34 Power & batteries33 Audio & music33 Sensors & data acquisition32 Motor control & robotics32 Displays & LED32 Computers & FPGA32 Interfaces & adapters27 RF & wireless24 IoT & home automation10 Test & measurement9 Badges & art boards6 Automotive & vehicles4 Cameras & imaging1

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Repository topics

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.

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