REFERENCE DESIGNS

Open hardware, with the files to prove it.

187 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

187

With a design page

187

KiCad projects

Pyboard

by micropython

The MicroPython board

530 169Custom

Keyboards & input devices

Env KB

by Envious-Data

A custom mechanical keyboard inspired by the CFTKB Mysterium utilizing the Raspberry Pi Pico

257 18GPL-3.0

Audio & music

LeetAI

by vonkonow

Leet AI – Wireless Synthesizer Ensemble with AI-powered composition for endless inspiration

41 2MIT

KiCad source

Cameras & imaging

OPSX SX70

by sunyitong

Open-source RP2040 replacement core board for the Polaroid SX-70 instant camera.

40 10GPL-3.0

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Keyboards & input devices38 Microcontroller boards37 Computers & FPGA23 Retro computing14 Audio & music12 Sensors & data acquisition11 Motor control & robotics10 Displays & LED9 Power & batteries8 RF & wireless7 Other boards6 Interfaces & adapters5 IoT & home automation3 Badges & art boards2 Test & measurement1 Cameras & imaging1

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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