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

RISCBoy

by Wren6991

Portable games console, designed from scratch: CPU, graphics, PCB, and the kitchen sink

507 21No license

Arduinocade board, published by rossumur

EAGLE source

Retro computing

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

DonCon2040 board, published by ravinrabbid

KiCad source

Microcontroller boards

DonCon2040

by ravinrabbid

RP2040 based firmware and hardware for DIY Taiko no Tatsujin Drum Controllers

64 9MIT

EAGLE source

Audio & music

ng2 Simon

by urish

Simon Game for angular2-iot

57 13MIT

EAGLE source

Automotive & vehicles

GCPlus

by Aurelio92

GC+ is a custom board that acts as a Gamecube controller with an upgradable firmware and custom features.

55 8MIT

Bad Thing of The Edge Keyboard board, published by Pakequis

KiCad source

Keyboards & input devices

Bad Thing of The Edge Keyboard

by Pakequis

Mechanical keyboard for left hand with Raspberry Pi Pico for games.

44 4MIT

Microcontroller boards

Sim Racing Shields

by dmadison

Add-on circuit boards ("shields") for connecting Arduino development boards to sim racing equipment.

44 4GPL-3.0

EAGLE source

Displays & LED

Shinewave

by Serisium

Passthrough signal decoder and LED visualizer for use in Gamecube Controller mods

44 9MIT

Microcontroller boards

Gba Cartridge

by jojolebarjos

Experiments about GameBoy Advance and how cartridges work

36 6MIT

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

Badges & art boards

Vectrex Cartridge

by technobly

Vectrex Cartridge PCB reference design

23 4Custom

KiCad source

Audio & music

Dendy

by UzixLS

Yet another Dendy (Famicom) clone - 8-bit home video game console

19 1No license

KiCad source

Computers & FPGA

tsuraraGB

by rniwase

Nintendo Gameboy cartridge-shaped FPGA development board

16 5BSD-3-Clause

Interfaces & adapters

GB Dumper

by wodowiesel

GB-Dumper is a PCB project for Gameboy cartridge dumps and backups via Arduino Nano on spi-bus & USB

14 1CC0-1.0

Retro computing

DSBClone

by Rolel

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

13 6GPL-3.0

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

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

Browse by category

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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