REFERENCE DESIGNS

Open hardware, with the files to prove it.

612 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

612

With a design page

612

KiCad projects

275

Eurorack Pcbs

by nickajeglin

A collection of easy to solder DIY eurorack PCB's

207 14No license

KiCad source

Microcontroller boards

RPi RRCircuits

by RobertPHeller

A collection of circuit designs for various MCUs, not just Raspberry Pis relating to Model Railroading

24 3Custom

Retroverse board, published by transistorfet

KiCad source

Retro computing

Retroverse

by transistorfet

A collection of VME-based hardware and software for modular computers

17 2Custom

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Microcontroller boards118 Keyboards & input devices81 Sensors & data acquisition42 Retro computing42 Audio & music41 Other boards40 Power & batteries39 Displays & LED39 Motor control & robotics38 Computers & FPGA36 Interfaces & adapters31 RF & wireless29 Test & measurement10 IoT & home automation10 Badges & art boards9 Automotive & vehicles4 Cameras & imaging3

Browse board families

ESP32ESP32 PCB design ArduinoArduino PCB design Raspberry Pi / RP2040Raspberry Pi PCB STM32STM32 PCB design Keyboard PCBkeyboard PCB design Power supplypower supply PCB design Battery chargerbattery charger PCB Motor controllermotor controller PCB Audio amplifieraudio amplifier PCB USB-CUSB-C PCB layout FPGAFPGA board design LoRaLoRa PCB design CAN busCAN bus PCB layout Dronedrone PCB design

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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