REFERENCE DESIGNS

Open hardware, with the files to prove it.

312 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

312

With a design page

312

KiCad projects

143

Sam Board

by Ttl

Hardware and software files for custom AT91SAM9N12 Linux board

189 53No license

KiCad source

Microcontroller boards

Fmcw

by Ttl

FMCW radar design files

164 47No license

Computers & FPGA

Tinyriser

by a-little-wifi

Cooler/cuter riser for Lenovo 8th/9th gen Tiny5 PCs

163 12CERN-OHL-S-2.0

Interfaces & adapters

Pcb Ttl Ftdi Esp Adapter

by klein0r

PCB to connect a TTL reader either to an FTDI or ESP12-E/F (WiFi)

25 2MIT

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Microcontroller boards62 Keyboards & input devices51 Computers & FPGA29 Retro computing27 Displays & LED19 Audio & music18 Sensors & data acquisition17 Power & batteries17 RF & wireless17 Motor control & robotics17 Other boards12 Interfaces & adapters11 IoT & home automation6 Test & measurement4 Badges & art boards4 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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