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

Kritzler

by tinkerlog

2D scribbling device

92 31No license

EAGLE source

Microcontroller boards

MIDI Patchbay

by abw

Hardware and firmware for a 4x4 MIDI merger/splitter patchbay based on an Arduino MEGA 2560

32 4GPL-3.0

EAGLE source

Microcontroller boards

LittleHelper

by appfruits

This is the Arduino compatible firmware running Little Helper, a little device that is useful in electronic labs. The firmware also shows how to build a more complex LCD based application, featuring a few standard controls.

28 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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