On top of providing the hardware compatibility, expanded memory, and faster clock speed offered by the UNO R4 Minima, the UNO R4 WiFi introduces a built-in 12×8 LED matrix, a Qwiic connector, and ...

The Arduino Uno is an open-source microcontroller board based on the Microchip ATmega328P microcontroller and developed by Arduino.cc.

Arduino has announced the new UNO R4 board family for prototyping and learning. The new models feature a faster microcontroller, a USB-C connector, improved power, Wi-Fi and Bluetooth LE, and more.