REFERENCE DESIGNS

Open hardware, with the files to prove it.

287 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

287

With a design page

287

KiCad projects

137

OpenRX

by OpenDrone-hw

OpenRX open-source ExpressLRS receiver family hub; board sources live in four dedicated hardware repositories.

411 64Custom

Project Hydra Meshtastic Pcb board, published by Hydra-Designs

KiCad source

RF & wireless

Project Hydra Meshtastic Pcb

by Hydra-Designs

A minimalist 1W LoRA PCB design for Meshtastic-device firmware

166 22GPL-3.0

Phone Rtty Interface board, published by 4x1md

KiCad source

RF & wireless

Phone Rtty Interface

by 4x1md

AFSK interface for Android smartphones and tablets.

35 2MIT

Radio Frequency Prototype Boards board, published by maelh

KiCad source

RF & wireless

Radio Frequency Prototype Boards

by maelh

Radio frequency prototype boards (based on MegawattKS' design)

28 5BSD-3-Clause

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Microcontroller boards59 Keyboards & input devices51 Computers & FPGA28 Retro computing25 Audio & music18 Displays & LED17 Sensors & data acquisition15 RF & wireless15 Motor control & robotics15 Power & batteries12 Other boards12 Interfaces & adapters7 IoT & home automation5 Test & measurement4 Badges & art boards3 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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