REFERENCE DESIGNS

Open hardware, with the files to prove it.

237 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

237

With a design page

237

KiCad projects

117

Electrical

by murexrobotics

Highly integrated electronics design and printed circuit boards (PCBs) for the MATE ROV Competition. Attempt the impossible.

192 6MIT

EasyEDA source

Power & batteries

HVCCPS

by AzidoPP

2200V 200mA 400W High voltage power supply

66 14GPL-3.0

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

Microcontroller boards

eBoard ATMEGA328

by aKaReZa75

This repository involves an educational header board for the ATMEGA328 AVR microcontroller, compatible with the Arduino UNO.

39 4GPL-3.0

Browse by category

Microcontroller boards47 Keyboards & input devices43 Computers & FPGA27 Retro computing18 Audio & music17 Displays & LED16 Motor control & robotics14 Sensors & data acquisition11 Power & batteries11 RF & wireless10 Other boards9 Interfaces & adapters5 IoT & home automation4 Test & measurement2 Badges & art boards2 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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