Open hardware, with the files to prove it.

262 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

262

With a design page

262

KiCad projects

124

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Microcontroller boards53 Keyboards & input devices47 Computers & FPGA28 Retro computing21 Audio & music17 Displays & LED16 Motor control & robotics15 Sensors & data acquisition13 RF & wireless13 Power & batteries11 Other boards10 Interfaces & adapters7 IoT & home automation5 Test & measurement3 Badges & art boards2 Cameras & imaging1

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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.

Open hardware, with the files to prove it.

Air Quality Sensor

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Browse board families

Repository topics

Open hardware, with the files to prove it.

Air Quality Sensor

Browse by category

Browse board families

Repository topics