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

Custom Teensy

by appfruits

This is a reference pcb and schematics for a custom Teensy 3.1 board in EAGLE CAD format. More info on this can be found in our blog post at: http://www.appfruits.com/2015/03/building-your-own-custom-teensy/

42 14No license

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

Arduino Reflow Oven Controller board, published by kalanda

EAGLE source

Microcontroller boards

Arduino Reflow Oven Controller

by kalanda

Reflow Oven Controller for soldering of SMD components based on Arduino.

17 2MIT

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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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