The Arduino UNO WiFi Rev.2 brings the power of wireless connectivity to the beloved UNO form factor, making it the perfect entry point for Internet of Things (IoT) development. Powered by the advanced ATmega4809 8-bit microcontroller, and featuring the u-blox NINA-W102 Wi-Fi/Bluetooth® module, this board enables seamless connection to wireless networks and BLE devices for modern, connected applications.
Whether you're building smart home devices, a wireless sensor network, or creating BLE-enabled gadgets, the UNO WiFi Rev.2 has you covered. The onboard ECC608 Crypto Chip ensures secure communication, while the built-in LSM6DS3TR IMU expands its application scope into motion-based or orientation-aware projects.
Designed for compatibility and ease of use, the board supports all existing Arduino UNO shields and sketches with minimal adjustments, thanks to a compatibility layer for the new microcontroller.
Microcontroller: ATmega4809 – more powerful and versatile than the classic ATmega328P
Wireless Connectivity: u-blox NINA-W102 module supports Wi-Fi and Bluetooth®/BLE
Onboard Security: ECC608 crypto chip for secure authentication and communication
Motion Detection: Built-in IMU (LSM6DS3TR) for sensing motion and orientation
Backward Compatible: Works with most existing UNO-compatible shields and libraries
USB, Power Jack, and ICSP Header for versatile powering and programming options
Operating Voltage: 5V
Input Voltage (recommended): 6–20V
Digital I/O Pins: 14 (5 PWM capable)
Analog Input Pins: 6
DC Current per I/O Pin: 20 mA
Flash Memory: 48 KB
SRAM: 6,144 Bytes
EEPROM: 256 Bytes
Clock Speed: 16 MHz
Connectivity: Wi-Fi and Bluetooth® via u-blox NINA-W102
Crypto Chip: ATECC608A
IMU Sensor: LSM6DS3TR
Dimensions: 68.6 mm x 53.4 mm
Weight: 25 g
Whether you're a beginner exploring IoT or an advanced maker building next-gen wireless applications, the Arduino UNO WiFi Rev.2 gives you the tools to innovate with ease.