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
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Exact board pages for widely used TI, ST, Espressif, Arduino, Raspberry Pi and Nordic hardware, linked to the manufacturer’s schematics and design resources.
The 32-bit Arduino Uno board combining a Renesas RA4M1 MCU with an ESP32-S3 connectivity module and a built-in LED matrix.
by pashutk
Split 36-key keyboard
by db-ok
Split wireless keyboard PCB based on the Sofle Choc keyboard
by Ttl
FMCW radar design files
by chili-chips-ba
Peripheral Component Interconnect (PCI) has taken the Express lane long ago, moving to xGbps SerDes. Now for the first time in opensource on the Host side too. Our project roots for the Root Port in 4 ways: |1|openRTL |2|openBFM with unique SIM setup, way faster than vendor's |3|openSW stack |4|one-of-a-kind open backplane.
by jgromes
Universal wireless communication shield for Arduino
by hallard
Raspberry PI Lora Gateway/Node for RFM92/95/96/98/69HCW Modules
by ckflight
Frequency Modulated Continuous Wave Radar hardware and software design files with 26 dBm output power covering around 250 m.
by elmo2k3
dabpi_ctl - RPi fm/fmhd/dab receiver control interface
by fmeschia
Arduino-based battery internal resistance meter
by hkzlab
Sound Card for the ISA (8bit) bus sporting Sound Blaster / Sound Blaster PRO emulation via ES688F chip, and a real Yamaha OPL3 FM Synth. It's also completely jumper configurable.
by tomtor
STM32 and AVR128 Printed Circuit Board for creating IOT nodes with the RFM95 LORA chip
by siderakb
A nRFMicro/Pro Micro compatible Bluetooth LE board, uses MDBT50Q nRF52840/nRF52833 module
by bocaletto-luca
FM Transmitter with Arduino & Si4713 - Author: Bocaletto Luca A professional Arduino UNO project using the SparkFun Si4713 breakout to broadcast line-level audio over FM (87.5 – 108 MHz), complete with RDS support.
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.