REFERENCE DESIGNS

Open hardware, with the files to prove it.

512 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

512

With a design page

512

KiCad projects

233

OpenTendo

by Redherring32

An Open-Source HardWare (OSHW) recreation of the original 1985 front-loading NES Motherboard

850 81Custom

Electrical board, published by murexrobotics

KiCad source

Motor control & robotics

Electrical

by murexrobotics

Highly integrated electronics design and printed circuit boards (PCBs) for the MATE ROV Competition. Attempt the impossible.

192 6MIT

Computers & FPGA

Tinyriser

by a-little-wifi

Cooler/cuter riser for Lenovo 8th/9th gen Tiny5 PCs

163 12CERN-OHL-S-2.0

KiCad source

Computers & FPGA

Pi5 PCIe

by m1geo

A crude reverse engineering of the Pi5 PCIe connector & potential breakout boards.

87 5MIT

esp32 4 Channel Relays board, published by leomanangka

KiCad source

Microcontroller boards

esp32 4 Channel Relays

by leomanangka

PCB design four channel relays with ESP32-WROOM-32

69 16CERN-OHL-P-2.0

ZEReader KiCad board, published by Allegra42

KiCad source

Displays & LED

ZEReader KiCad

by Allegra42

ZEReader is an open source hardware and software E-Book Reader platform. Originally developed as a bachelor's thesis in electrical engineering, the project now evolves as a hobby initiative dedicated to further develop this hackable and customizable platform.

65 3CERN-OHL-S-2.0

KiCad source

Interfaces & adapters

DuPAL Board

by DuPAL-PAL-DUmper

This repository contains the KiCad files and the gerber files for the DuPAL boards.

57 10CC-BY-SA-4.0

Keyboards & input devices

Pcb Checklist

by henrikh

A checklist for electronics and electrical design

47 6Unlicense

Computers & FPGA

ASM2464PD Test

by a-little-wifi

Messing around with ASM2464PD symbol and footprint

46 3No license

Reverse Engineering ndp2016 Wristband board, published by yeokm1

KiCad source

Microcontroller boards

Reverse Engineering ndp2016 Wristband

by yeokm1

Schematics of the reverse engineered Pixmob wristband used in NDP2016. Sample IR brute-force code is available but has not been fully tested in practice.

28 5MIT

Power & batteries

Boost Converter

by YousifAhmedAbdEl-Fattah

The aim of this project is to design and implement an Irreversible Boost Converter as an educational model for understanding the core principles of asynchronous (non-isolated)

14 6Custom

KiCad source

Other boards

Modules From China

by NiceCircuits

Various modules from china - schematic reverse engineering etc.

13 9CC0-1.0

Sisu SSE 9 board, published by briskspirit

KiCad source

Power & batteries

Sisu SSE 9

by briskspirit

Experimental six-layer LTE replacement mainboard for the Nokia 3210, built around RP2354B and Telit LE910C1-WWX.

10 1Unlicense

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Microcontroller boards98 Keyboards & input devices69 Retro computing36 Other boards34 Power & batteries33 Audio & music33 Sensors & data acquisition32 Motor control & robotics32 Displays & LED32 Computers & FPGA32 Interfaces & adapters27 RF & wireless24 IoT & home automation10 Test & measurement9 Badges & art boards6 Automotive & vehicles4 Cameras & imaging1

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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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