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

RISCBoy

by Wren6991

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

507 21No license

Displays & LED

CGA Redux

by hkzlab

The Color Graphics Adapter Redux board is a more or less faithful clone of the original IBM CGA, based on the original schematics

55 3Custom

Displays & LED

TTL to RGB

by hkzlab

This board converts CGA/EGA/MDA/Hercules TTL signals into analog RGB signals that can be fed into a compatible monitor

20 3Custom

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Microcontroller boards77 Keyboards & input devices55 Computers & FPGA31 Retro computing30 Audio & music26 Power & batteries24 Displays & LED24 Motor control & robotics23 Sensors & data acquisition21 RF & wireless21 Interfaces & adapters17 Other boards17 IoT & home automation7 Badges & art boards6 Test & measurement5 Automotive & vehicles2 Cameras & imaging1

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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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