REFERENCE DESIGNS

Open hardware, with the files to prove it.

37 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

With a design page

KiCad projects

OpenTendo

by Redherring32

An Open-Source HardWare (OSHW) recreation of the original 1985 front-loading NES Motherboard

850 81Custom

KiCad source

Computers & FPGA

Wrench Board

by Junkz3

A senior microsoldering technician, available to every repair shop from the seasoned pro to the apprentice. Powered by Claude Opus 5

238 58Custom

KiCad source

Computers & FPGA

zx Sizif 512

by UzixLS

ZX Spectrum CPLD-based clone for rubber case

194 32MIT

Browse by category

Keyboards & input devices10 Microcontroller boards8 Computers & FPGA5 Retro computing3 Power & batteries2 RF & wireless2 Motor control & robotics2 Audio & music2 IoT & home automation2 Interfaces & adapters1

Browse board families

ESP32ESP32 PCB design ArduinoArduino PCB design Raspberry Pi / RP2040Raspberry Pi PCB Keyboard PCBkeyboard PCB design Battery chargerbattery charger PCB Motor controllermotor controller PCB Audio amplifieraudio amplifier PCB FPGAFPGA board design LoRaLoRa PCB design Dronedrone PCB design

Repository topics

pcb 13 keyboard 10 kicad 8 electronics 6 arduino 6 diy 6 hardware 4 esp32 4

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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