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

Arduinocade

by rossumur

Play color retro games on an arduino with a few cheap components

161 23No license

Retro computing

TMS9918A

by jblang

TMS9918A video card for RC2014

145 24No license

Retro computing

SNES FeRAM Cart

by soniccd123

Open Hardware SNES Cartridge with save capability

87 17No license

Gameboy Color Cartridge board, published by Xyl2k

EAGLE source

Retro computing

Gameboy Color Cartridge

by Xyl2k

Board layout for an eeprom powered GB cartridge

75 23Unlicense

Retro computing

OpenPSX2AmigaPadAdapter

by SukkoPera

Playstation to Commodore Amiga/CD32 Controller Adapter

69 13Custom

Gameboy Hifi Audio board, published by cajunpanda

KiCad source

Retro computing

Gameboy Hifi Audio

by cajunpanda

A HiFi audio mod for various Game Boy models

26 3MIT

Retro computing

DSBClone

by Rolel

A replacement PCB for the SEGA Digital Sound Boardscused on several SEGA arcade games

13 6GPL-3.0

pi Rgb Cable Sync Mixer board, published by KabukiFlux

KiCad source

Retro computing

pi Rgb Cable Sync Mixer

by KabukiFlux

Small PCB mod to mix the sync in the RGBpi cable to solve sync issues

9 1MIT

NES IO Board Nessionator board, published by KabukiFlux

KiCad source

Retro computing

NES IO Board Nessionator

by KabukiFlux

Nessionator, the NESRGB mod output board

9 1BSD-3-Clause

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Microcontroller boards107 Keyboards & input devices73 Power & batteries38 Other boards38 Audio & music37 Displays & LED37 Retro computing37 Sensors & data acquisition36 Motor control & robotics36 Computers & FPGA34 Interfaces & adapters28 RF & wireless26 Test & measurement10 IoT & home automation10 Badges & art boards8 Automotive & vehicles4 Cameras & imaging3

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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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