REFERENCE DESIGNS

Open hardware, with the files to prove it.

562 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

562

With a design page

562

KiCad projects

253

Pwdr Model 0.1

by Pwdr

A powder substrate rapid prototyping machine

130 69No license

yasir-shahzad Altium Library board, published by yasir-shahzad

Altium source

Microcontroller boards

yasir-shahzad Altium Library

by yasir-shahzad

🖥️ Altium Library with 4000+ components! 🛠️ It ensures design accuracy 📐 and includes 3D STEP models 📏✨—perfect for engineers! 🚀😊 Let me know if you need more! 👍

39 2GPL-3.0

KiCad source

Microcontroller boards

RPi RRCircuits

by RobertPHeller

A collection of circuit designs for various MCUs, not just Raspberry Pis relating to Model Railroading

24 3Custom

NIMRS 21Pin Decoder board, published by CDFER

KiCad source

Microcontroller boards

NIMRS 21Pin Decoder

by CDFER

An open source 21-Pin DCC Decoder for model trains

20 3No license

KiCad source

Microcontroller boards

IoT12

by atoomnetmarc

Schematic, PCB files, firmware and 3d models for creating the IoT12 solder iron temperature controller for T12 compatible tips.

14 5Apache-2.0

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Browse board families

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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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