REFERENCE DESIGNS

Open hardware, with the files to prove it.

462 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

462

With a design page

462

KiCad projects

210

ESP8266 Tiny Door And Window Sensor

by 8n1

Battery powered door and window sensor with ultra low standby power. Arduino, ESP-12, Reed switch, ATtiny, LDO

173 32No license

EAGLE source

Other boards

Chronio

by CoretechR

Low Power Arduino Based (Smart)Watch

90 12GPL-3.0

Gameboy Color Cartridge board, published by Xyl2k

EAGLE source

Retro computing

Gameboy Color Cartridge

by Xyl2k

Board layout for an eeprom powered GB cartridge

75 23Unlicense

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Microcontroller boards90 Keyboards & input devices63 Retro computing34 Audio & music31 Computers & FPGA31 Power & batteries30 Motor control & robotics30 Sensors & data acquisition28 Other boards28 Displays & LED27 RF & wireless24 Interfaces & adapters21 Test & measurement8 IoT & home automation7 Badges & art boards6 Automotive & vehicles3 Cameras & imaging1

Browse board families

ESP32ESP32 PCB design ArduinoArduino PCB design Raspberry Pi / RP2040Raspberry Pi PCB STM32STM32 PCB design Keyboard PCBkeyboard PCB design Power supplypower supply PCB design Battery chargerbattery charger PCB Motor controllermotor controller PCB Audio amplifieraudio amplifier PCB USB-CUSB-C PCB layout FPGAFPGA board design LoRaLoRa PCB design CAN busCAN bus PCB layout Dronedrone PCB design

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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