REFERENCE DESIGNS

Open hardware, with the files to prove it.

887 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

887

With a design page

887

KiCad projects

405

Teensy Eurorack

by newdigate

Hardware Design: Eurorack shield for teensy 4.1 with 14 in / 16 out analog channels

258 26MIT

Computers & FPGA

openCologne

by chili-chips-ba

Spicing up the first and (no longer) the only EU FPGA chip with a flashy new board, loaded with a suite of engaging demos and examples => https://www.chili-chips.xyz/open-cologne | Also see https://nanoxplore.com

102 8BSD-3-Clause

RPI Lora Gateway board, published by hallard

EAGLE source

RF & wireless

RPI Lora Gateway

by hallard

Raspberry PI Lora Gateway/Node for RFM92/95/96/98/69HCW Modules

62 26No license

Microcontroller boards

OpenZ3Gateway

by cyijun

An open source Zstack3 gateway powered by ESP8266 and CC2652 modules

42 13Apache-2.0

Teensy Control Voltage board, published by newdigate

KiCad source

Audio & music

Teensy Control Voltage

by newdigate

Hardware Design: 16 channel analog control voltage shield for teensy 4.1; 8ch in / 8ch out; +-10V @ 16bits/sample;

27 5MIT

hl Alyx Glove board, published by StarGate01

KiCad source

Displays & LED

hl Alyx Glove

by StarGate01

Firmware and Hardware for a Half-Life: Alyx Gravity Glove Replica

20 0MIT

Hellzgate board, published by Hellz0wnzJ00

KiCad source

RF & wireless

Hellzgate

by Hellz0wnzJ00

HellzGate — a multi-node wireless research platform. FullGate first; MiniGate planned. Built for education, research, and authorized testing.

11 0No license

74Logic SA ADC board, published by schilkp

KiCad source

Audio & music

74Logic SA ADC

by schilkp

A discrete Successive Approximation ADC built from individual logic gates.

9 0MIT

WiFi Gate Controller board, published by mikelawrence

KiCad source

Microcontroller boards

WiFi Gate Controller

by mikelawrence

WiFi enabled Gate Controller Addon to US Automatic Gate Opener

8 1MIT

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Microcontroller boards179 Keyboards & input devices100 Other boards71 Sensors & data acquisition61 Power & batteries60 Displays & LED60 Audio & music57 Retro computing57 Interfaces & adapters50 Motor control & robotics49 RF & wireless45 Computers & FPGA45 Test & measurement16 IoT & home automation14 Badges & art boards13 Automotive & vehicles5 Cameras & imaging5

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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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