REFERENCE DESIGNS

Open hardware, with the files to prove it.

387 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

387

With a design page

387

KiCad projects

175

Moduleur

by shmoergh

Fully analog DIY-friendly modular synth

213 13No license

KiCad source

Audio & music

CATs Eurosynth

by mzuelch

Analog Synth Eurorack Modules

165 24MIT

HAGIWOs Module board, published by ijnekenamay

KiCad source

Audio & music

HAGIWOs Module

by ijnekenamay

eurorack modular synthesizers projects using Arduino.

142 22No license

Printable Instruments board, published by 30350n

KiCad source

Audio & music

Printable Instruments

by 30350n

PCB panels for Mutable Instruments eurorack modules

75 14Custom

KiCad source

Audio & music

FMCW RADAR

by ckflight

Frequency Modulated Continuous Wave Radar hardware and software design files with 26 dBm output power covering around 250 m.

54 18GPL-3.0

Audio & music

LeetAI

by vonkonow

Leet AI – Wireless Synthesizer Ensemble with AI-powered composition for endless inspiration

41 2MIT

Eurorack Multi Saturation Module board, published by DIYSynthMNL

KiCad source

Audio & music

Eurorack Multi Saturation Module

by DIYSynthMNL

A multi saturation module with voltage controlled wet/dry mix

22 3GPL-3.0

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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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