REFERENCE DESIGNS

Open hardware, with the files to prove it.

712 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

712

With a design page

712

KiCad projects

324

Official boards matching “fm”

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

4 boards in Microcontroller boards matching “fm”Page 1 of 1

KiCad source

Microcontroller boards

Fmcw

by Ttl

FMCW radar design files

164 47No license

EAGLE source

Microcontroller boards

Esr Meter

by fmeschia

Arduino-based battery internal resistance meter

48 21Apache-2.0

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

KiCad source

Microcontroller boards

Mdbt Micro

by siderakb

A nRFMicro/Pro Micro compatible Bluetooth LE board, uses MDBT50Q nRF52840/nRF52833 module

18 3MIT

Browse by category

Microcontroller boards139 Keyboards & input devices89 Retro computing51 Power & batteries50 Sensors & data acquisition48 Displays & LED48 Audio & music47 Other boards46 Motor control & robotics42 Computers & FPGA41 Interfaces & adapters37 RF & wireless33 Test & measurement12 IoT & home automation12 Badges & art boards10 Automotive & vehicles4 Cameras & imaging3

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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