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

BeanCounter

by NPoole

SMT parts counter that fits in your pocket

223 72CC-BY-SA-4.0

EAGLE source

Sensors & data acquisition

ESP8266 LUA

by ok1cdj

LUA scripts for ESP8266 with NodeMCU firmware

105 62No license

EAGLE source

Sensors & data acquisition

MinipHHW

by SparkysWidgets

This is the Hardware Repo for MinipH (EAGLE Files)

31 18No license

Altium source

Sensors & data acquisition

Personal Altium Library

by ddtdanilo

Curated Altium Designer schematic symbols and PCB footprints with verified inventory, documentation, and integrity checks.

21 4CERN-OHL-P-2.0

Tepmachcha board, published by DAI-Maker-Lab

KiCad source

Sensors & data acquisition

Tepmachcha

by DAI-Maker-Lab

An open source sonar stream gauge designed to give early warning of flood conditions to residents in vulnerable areas.

19 7MIT

KiCad source

Sensors & data acquisition

TinyTracker

by daveshah1

Tiny LoRa-based GPS tracker for balloon experiments

13 3MIT

KiCad Devices board, published by schilkp

KiCad source

Sensors & data acquisition

KiCad Devices

by schilkp

Various KiCad Footprints and Symbols for various Projects

13 0MIT

KiCad source

Sensors & data acquisition

Motor High Current Sensors

by jonblissett

Design for a quadruple current sensing board using the LEM HTFS series current sensors, for 200-800A providing 14-bit digital outputs with optical signalling. Designed for sensing 3-phase and DC-bus current on electric vehicles and tested on a racing electric motorcycle.

11 4GPL-3.0

Sensors & data acquisition

Relier

by Ricardosgeral

Open redesign of an acquisition system for laboratory tests on internal erosion in soils

8 4MIT

KiCad source

Sensors & data acquisition

ADC PCM4202

by ohdsp

Open Hardware DSP Platform PCM4202 ADC with differential inputs

8 2Custom

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Microcontroller boards179 Keyboards & input devices100 Other boards71 Sensors & data acquisition61 Power & batteries60 Displays & LED60 Audio & music57 Retro computing57 Interfaces & adapters50 Motor control & robotics49 RF & wireless45 Computers & FPGA45 Test & measurement16 IoT & home automation14 Badges & art boards13 Automotive & vehicles5 Cameras & imaging5

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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