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

Niubi Headphones

by strangeparts

Flexible circuit board design for adding a headphone jack to an iPhone 7

492 42MIT

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

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

Altium Designer Notes And PCB Design Guidelines board, published by amiryeg

Altium source

Retro computing

Altium Designer Notes And PCB Design Guidelines

by amiryeg

How to design a standard PCB layout using Altium Designer

113 28No license

KiCad source

Retro computing

sdtv2csi

by rniwase

Board for converting SDTV analog video to MIPI CSI-2 using Analog Devices ADV7280A-M.

53 10CC0-1.0

Retro computing

OpenC64WarpSpeed

by SukkoPera

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

50 11Custom

KiCad source

Retro computing

c2c 64

by jsanpe

A Composite & S-video to Component transcoder for the OSSC

37 4MIT

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

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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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