REFERENCE DESIGNS

Open hardware, with the files to prove it.

412 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

412

With a design page

412

KiCad projects

187

Haxo hw

by cardonabits

Haxophone, an electronic musical instrument that resembles a saxophone

672 20Custom

KiCad source

Audio & music

Thatmicpre

by ojg

Microphone Pre-amplifier

192 13CC-BY-SA-4.0

Audio & music

PedalPiV2

by thawney

Pedal Pi V2 by Thawney is an all new and regularly maintained Pedal-Pi by electrosmash; a lo-fi programmable guitar pedal that works with the Raspberry Pi ZERO Board. My repository contains all of the information needed to create your own board from scratch unlike Pedal Pi who only share effect code.

43 3GPL-3.0

Browse by category

Microcontroller boards81 Keyboards & input devices58 Computers & FPGA31 Retro computing30 Power & batteries27 Audio & music26 Displays & LED25 Sensors & data acquisition24 Motor control & robotics24 Other boards24 RF & wireless21 Interfaces & adapters18 IoT & home automation7 Test & measurement6 Badges & art boards6 Automotive & vehicles3 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.

Loading…