REFERENCE DESIGNS

Open hardware, with the files to prove it.

687 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

687

With a design page

687

KiCad projects

311

candleLight

by HubertD

stm32f0 usb can adapter (KiCAD)

397 159Custom

KiCad source

Interfaces & adapters

OCP2PCIe

by KCORES

OCP Mezzanine card V2.0 to standard PCIe slot adapter design

359 87GPL-3.0

Usb Sleuth board, published by smaroukis

KiCad source

Interfaces & adapters

Usb Sleuth

by smaroukis

USB cable continuity tester ++

61 1Custom

Misistemita board, published by galopago

KiCad source

Interfaces & adapters

Misistemita

by galopago

Electronic hardware prototyping system. Solderless, robust and open source. Solves the typical problem of the circuit that works on a breadboard but stops working on a real-world setup. Easy to replicate and compatible with virtually every electronic module.

47 3MIT

STM32F103RB USB to UART SPI I2C board, published by Stulinaz

KiCad source

Interfaces & adapters

STM32F103RB USB to UART SPI I2C

by Stulinaz

Firmware and Kicad project for my USB to UART/I2C/SPI converter

23 8No license

KiCad source

Interfaces & adapters

Psdaptwor

by Swyter

An experimental PC adapter for EPCOT —the PlayStation®VR2 headset— that splits USB Type-C® into DisplayPort video, USB 3 data and power. Intercepting its DP-AUX/SBU and CC side channels.

22 1CERN-OHL-S-2.0

KiCad source

Interfaces & adapters

CoreOne xCORE200 Original

by ohdsp

Open Hardware DSP Platform - XMOS xCORE200 Platform based DSP and microcontroller PCB design - open source hardware - untested

19 7No license

Scart Megadrive 2 12v Cable board, published by KabukiFlux

KiCad source

Interfaces & adapters

Scart Megadrive 2 12v Cable

by KabukiFlux

PCB form Megadrive/Genesis 2 RGB minidin to Scart adapter with 12V DCDC boost (4:3 switching)

11 1MIT

Browse by category

Microcontroller boards135 Keyboards & input devices86 Retro computing50 Displays & LED47 Power & batteries46 Sensors & data acquisition45 Other boards45 Audio & music44 Computers & FPGA41 Motor control & robotics40 Interfaces & adapters37 RF & wireless31 Test & measurement12 IoT & home automation11 Badges & art boards10 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.

Loading…