REFERENCE DESIGNS

Open hardware, with the files to prove it.

912 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

912

With a design page

912

KiCad projects

419

Official boards matching “qwiic”

Exact board pages for widely used TI, ST, Espressif, Arduino, Raspberry Pi and Nordic hardware, linked to the manufacturer’s schematics and design resources.

Browse all 13 official boards

ArduinoOfficial resources

Arduino UNO R4 WiFi

The 32-bit Arduino Uno board combining a Renesas RA4M1 MCU with an ESP32-S3 connectivity module and a built-in LED matrix.

R7FA4M1AB3CFM + ESP32-S3-MINI-1

View reference board

2 boards in Microcontroller boards matching “qwiic”Page 1 of 1

Microcontroller boards

SparkFun Pro Micro RP2350

by sparkfun

The SparkFun Pro Micro - RP2350 is a compact and versatile development board built around Raspberry Pi's RP2350 microcontroller.

15 1No license

Microcontroller boards

SparkFun Thing Plus ESP32 C6

by sparkfun

The SparkFun Thing Plus ESP32-C6 is a wireless development board built around the ESP32-C6 WROOM-1-N16.

14 4No license

Browse by category

Microcontroller boards180 Keyboards & input devices102 Other boards75 Sensors & data acquisition64 Power & batteries64 Displays & LED62 Retro computing61 Audio & music57 Interfaces & adapters52 Motor control & robotics49 RF & wireless47 Computers & FPGA46 Test & measurement16 IoT & home automation14 Badges & art boards13 Automotive & vehicles5 Cameras & imaging5

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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