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

Haxo hw

by cardonabits

Haxophone, an electronic musical instrument that resembles a saxophone

672 20Custom

Printable Instruments board, published by 30350n

KiCad source

Audio & music

Printable Instruments

by 30350n

PCB panels for Mutable Instruments eurorack modules

75 14Custom

MutatedMutables board, published by TheSlowGrowth

KiCad source

Audio & music

MutatedMutables

by TheSlowGrowth

Alternative panels for Mutable Instruments modules

32 10No license

KiCad source

Audio & music

AmpOne

by ohdsp

Open Hardware DSP Platform - Class D Amplifier TDA7498, TDA7492 PCB design - Open Source Hardware - Untested

26 8No license

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

KiCad source

Audio & music

OpenVTX

by OpenDrone-hw

Open-source FPV video transmitter hardware. Part of the OpenDrone ecosystem.

14 12Custom

MIDI4MiSTer board, published by KabukiFlux

KiCad source

Audio & music

MIDI4MiSTer

by KabukiFlux

MiSTer user port MIDI output and input PCB

13 0MIT

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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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