REFERENCE DESIGNS

Open hardware, with the files to prove it.

387 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

387

With a design page

387

KiCad projects

175

Raemixx500

by SukkoPera

Open Hardware Remake of the Commodore Amiga 500+ Mainboard

313 37No license

RetroWiFiModem board, published by mecparts

KiCad source

Retro computing

RetroWiFiModem

by mecparts

An ESP8266 based RS232 <-> WiFi modem with Hayes AT style commands and LED indicators

254 43GPL-3.0

KiCad source

Retro computing

Pi1541io

by hackup

Raspberry Pi extension board for the PI1541 project.

108 24CC-BY-SA-4.0

Retro computing

OpenPSX2AmigaPadAdapter

by SukkoPera

Playstation to Commodore Amiga/CD32 Controller Adapter

69 13Custom

Retro computing

OpenC64WarpSpeed

by SukkoPera

Open Hardware Fast Loader cartridge for the Commodore 64 and 128 - DO NOT USE!!!

50 11Custom

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

c128 Mmu 256k Exp board, published by ytmytm

KiCad source

Retro computing

c128 Mmu 256k Exp

by ytmytm

C128 MMU 256K RAM expansion

26 2MIT

Retro computing

LENINGRAD 2 48k

by Alex-2-Graf

Leningrad-2. Russian ZX Spectrum clone (2025 Revision). Modernized schematic & PCB with onboard RGB2VGA/HDMI converter, AY-3-8910 sound, and expansion bus adapters.

11 4MIT

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

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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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