REFERENCE DESIGNS

Open hardware, with the files to prove it.

362 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

362

With a design page

362

KiCad projects

163

zx Multisound

by UzixLS

ZX Spectrum soundcard for NEMOBUS/ZXBUS

37 19MIT

KiCad source

Keyboards & input devices

paw3395 Pcb

by badjeff

An open source breakout board for PixArt PAW3395DM-T6QU / PAW3950DM-T5QU low power optical mouse sensor.

37 8CERN-OHL-P-2.0

KiCad source

Microcontroller boards

Mitayi Pico D1

by CIRCUITSTATE

Open-Source RP2040 Microcontroller Development Board

36 10MIT

Boatcontrol board, published by antevens

KiCad source

Power & batteries

Boatcontrol

by antevens

A Relay PCB with a socket for a Raspberry Pi or Nvidia Jetson to control everything on a boat

36 5Custom

Usbflashprog board, published by robsonsmartins

KiCad source

Test & measurement

Usbflashprog

by robsonsmartins

A memory device programmer (Flash/EPROM/E2PROM) board and software, connected to PC by USB port.

35 7Custom

KiCad source

Computers & FPGA

Kicad Conversions Atari Ste Motherboard c300780 001

by sporniket

A conversion to Kicad EDA of the schematics of a computer released around 1989 known as the "Atari STE".

35 9CC0-1.0

KiCad source

Power & batteries

Jlcsearch

by tscircuit

Find parts from JLCPCB matching design constraints (resistance values, capacitance, tolerance etc.)

33 221MIT

Kicad amiga2000 board, published by rhaamo

KiCad source

Retro computing

Kicad amiga2000

by rhaamo

Amiga 2000 revision 6.2 motherboard re-done in KiCAD. WARNING: stability issue with Wicher 500i, could be noise related from accelerator speed.

33 9CC0-1.0

KiCad source

Computers & FPGA

zx Sizif 128

by UzixLS

Easy-to-build minimalistic ZX Spectrum clone

32 6MIT

KiCad source

Motor control & robotics

Pcb Motor

by ziteh

PCB axial flux PMSM/BLDC motor (WIP)

32 7MIT

KiCad source

Power & batteries

Nikon Gps

by 4x1md

DIY GPS module for Nikon DSLR

30 3MIT

Project OAK board, published by 0101shift

KiCad source

Displays & LED

Project OAK

by 0101shift

All design files, source code, and documentation for Project OAK, a digital watch inspired by mechanical complications.

29 1MIT

Radio Frequency Prototype Boards board, published by maelh

KiCad source

RF & wireless

Radio Frequency Prototype Boards

by maelh

Radio frequency prototype boards (based on MegawattKS' design)

28 5BSD-3-Clause

zxevo1010 Board board, published by UzixLS

KiCad source

Keyboards & input devices

zxevo1010 Board

by UzixLS

10x10cm PCB variant of ZX-Evolution project for G738/G706 enclosure

24 6No license

zxuno1010 Board board, published by UzixLS

KiCad source

Keyboards & input devices

zxuno1010 Board

by UzixLS

10x10cm PCB variant of ZX-UNO project for G738/G706 enclosure

23 7MIT

KiCad source

RF & wireless

Qrp Swr Meter

by 4x1md

External bridge SWR meter for Yaesu FT-817ND and other QRP HF transceivers.

23 5MIT

KiCad source

Retro computing

zx Tsid

by UzixLS

MOS SID sound card for ZX Spectrum

22 5MIT

CopperForge board, published by Atlantix-EDA

KiCad source

Displays & LED

CopperForge

by Atlantix-EDA

Companion PCB Release & Manufacturing Tool for KiCad

21 2MIT

STM32 RFM95 PCB board, published by tomtor

KiCad source

Microcontroller boards

STM32 RFM95 PCB

by tomtor

STM32 and AVR128 Printed Circuit Board for creating IOT nodes with the RFM95 LORA chip

20 13GPL-3.0

zx Sizif 512 Ext board, published by UzixLS

KiCad source

Computers & FPGA

zx Sizif 512 Ext

by UzixLS

Extension board for Sizif-512

19 7MIT

KiCad source

Computers & FPGA

tsuraraGB

by rniwase

Nintendo Gameboy cartridge-shaped FPGA development board

16 5BSD-3-Clause

KiCad source

Keyboards & input devices

Kicad Multi PCB

by Eliot-Abramo

KiCad Action Plugin for managing multiple PCBs (“sub-boards”) from a single schematic (KiCad 10+).

16 2MIT

KiCad source

Displays & LED

rgb2ypbpr

by UzixLS

RGB to YPbPr converter

15 2MIT

KiCad source

Microcontroller boards

IoT12

by atoomnetmarc

Schematic, PCB files, firmware and 3d models for creating the IoT12 solder iron temperature controller for T12 compatible tips.

14 5Apache-2.0

KiCad source

Displays & LED

rgb2svideo

by UzixLS

Converts RGB + Sync analog signal to S-Video (and also Composite).

13 2MIT

MIDI4MiSTer board, published by KabukiFlux

KiCad source

Audio & music

MIDI4MiSTer

by KabukiFlux

MiSTer user port MIDI output and input PCB

13 0MIT

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

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Microcontroller boards73 Keyboards & input devices54 Computers & FPGA30 Retro computing30 Displays & LED23 Audio & music22 Sensors & data acquisition21 Motor control & robotics21 Power & batteries20 RF & wireless20 Interfaces & adapters16 Other boards14 IoT & home automation6 Test & measurement5 Badges & art boards5 Automotive & vehicles1 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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