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

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

KiCad source

RF & wireless

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

EAGLE source

RF & wireless

key20

by duerrfk

Key 2.0 is a Bluetooth IoT Door Lock. It turns a conventional electric door lock into a smart door lock that can be opened using a smartphone without the need for a physical key. Thus, Key20 is the modern version of a physical key, or, as the name suggests, the key version 2.0 for the Internet of Things (IoT) era.

90 34Custom

RF & wireless

Snappergps Pcb

by SnapperGPS

Printed circuit board (PCB) design for snapshot GNSS receiver

46 4Custom

EAGLE source

RF & wireless

Uwb Localization

by cheekiang

Indoor/Outdoor Positioning System framework based on Decawave's DWM1000 Ultra Wide Band transceivers

46 21No license

KiCad source

RF & wireless

OpenTheremin V3 Shield

by GaudiLabs

Open Source Theremin Instrument, Shield PCB and Hardware description

45 12GPL-3.0

SolarMeshtasticNode board, published by h0lad

KiCad source

RF & wireless

SolarMeshtasticNode

by h0lad

This is a Meshtastic Solar Node PCB based on the Heltec HT-CT62 and the linear solar charge controller TI BQ25185.

38 2CERN-OHL-S-2.0

RF & wireless

bwlr1e

by teapotlaboratories

Teapotlabs BWLR1E: Wireless Environmental Sensor with Energy Harvesting from Solar Energy

35 4MIT

Gpstracker Pcb board, published by blemasle

KiCad source

RF & wireless

Gpstracker Pcb

by blemasle

Connected GPS tracker PCB

32 19MIT

reTerminalEM board, published by stanleyondrus

KiCad source

RF & wireless

reTerminalEM

by stanleyondrus

reTerminalEM is an open-source expansion module platform for reTerminal's high speed interface (PCIe X2, USB 2.0, POE, 2x I2C, 2x SPI, UART, and 11 GPIOs).

23 2No license

RF & wireless

MM8108 WiFi HaLow USB Adapter

by EmilioAL-Git

Open-source USB to WiFi HaLow (IEEE 802.11ah) adapter based on Morse Micro MM8108-MF15457 module.

14 4No license

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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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