REFERENCE DESIGNS

Open hardware, with the files to prove it.

487 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

487

With a design page

487

KiCad projects

220

HASwitchPlate

by aderusha

LCD touchscreen for Home Automation

738 129MIT

Mppt 2420 hc board, published by LibreSolar

KiCad source

Power & batteries

Mppt 2420 hc

by LibreSolar

MPPT charge controller with HS load switch and CAN bus

133 32Custom

KiCad source

Keyboards & input devices

bancouver40

by ChrisChrisLoLo

A 4x10 CFX spaced low-profile mechanical keyboard.

112 11GPL-3.0

KiCad source

Displays & LED

zeta256

by jmacarthur

The Zeta minimal Z80 toggle-switch computer

100 9Custom

ESP WiFiSwitch board, published by biohazardxxx

KiCad source

Displays & LED

ESP WiFiSwitch

by biohazardxxx

WiFi power switch using the ESP8266

55 19GPL-3.0

KiCad source

IoT & home automation

SparkSwitch

by vedderb

Active precharce circuit with optional switch input

51 17No license

SHINSANWASWITCH board, published by steelpuxnastik

KiCad source

Retro computing

SHINSANWASWITCH

by steelpuxnastik

DIY-friendly photointerrupter microswitch/lamp holder 2-in-1 for generic 100mm Chinese arcade buttons. Enables an OBSA-LHSXF+OBSA-100UMQ-like setup at low cost with generic parts.

14 1MIT

Scart Megadrive 2 12v Cable board, published by KabukiFlux

KiCad source

Interfaces & adapters

Scart Megadrive 2 12v Cable

by KabukiFlux

PCB form Megadrive/Genesis 2 RGB minidin to Scart adapter with 12V DCDC boost (4:3 switching)

11 1MIT

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Microcontroller boards93 Keyboards & input devices66 Retro computing35 Audio & music32 Sensors & data acquisition31 Power & batteries31 Motor control & robotics31 Computers & FPGA31 Other boards30 Displays & LED29 Interfaces & adapters26 RF & wireless24 Test & measurement9 IoT & home automation8 Badges & art boards6 Automotive & vehicles4 Cameras & imaging1

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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