REFERENCE DESIGNS

Open hardware, with the files to prove it.

37 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

With a design page

KiCad projects

OURS Project

by evanman83

Step-by-step instructions to build a smartphone that is open-source, upgradeable, repairable, and Big Tech free.

901 57GPL-3.0

Microcontroller boards

Open Gamma Detector

by OpenGammaProject

☢️👁️ Hardware for a hackable DIY gamma-ray spectrometer using a popular NaI(Tl) scintillator, SiPM and a Raspberry Pi Pico.

374 52GPL-3.0

Browse by category

Keyboards & input devices10 Microcontroller boards8 Computers & FPGA5 Retro computing3 Power & batteries2 RF & wireless2 Motor control & robotics2 Audio & music2 IoT & home automation2 Interfaces & adapters1

Browse board families

ESP32ESP32 PCB design ArduinoArduino PCB design Raspberry Pi / RP2040Raspberry Pi PCB Keyboard PCBkeyboard PCB design Battery chargerbattery charger PCB Motor controllermotor controller PCB Audio amplifieraudio amplifier PCB FPGAFPGA board design LoRaLoRa PCB design Dronedrone PCB design

Repository topics

pcb 13 keyboard 10 kicad 8 electronics 6 arduino 6 diy 6 hardware 4 esp32 4

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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