Arduino Uno WiFi Rev2 Wireless Development Board

The Arduino Uno WiFi Rev2 is a wireless development board built around the ATmega4809 8-bit microprocessor, combining the classic Arduino Uno form factor with integrated Wi-Fi connectivity and onboard sensing.

Overview

The board is suited to IoT (Internet of Things) and embedded projects that require wireless connectivity. The self-contained Wi-Fi module includes a full TCP/IP protocol stack, allowing the board to connect to existing networks or operate as its own access point. An ECC608 crypto chip accelerator supports secure Wi-Fi connections, which makes the board suitable for applications that require encrypted data transmission. The board measures 3.3 x 1.5 x 4.3 (width x depth x height) and weighs 40 g.

Key Features

• Onboard IMU (Inertial Measurement Unit) for motion and orientation sensing
• OTA (Over-The-Air) programming for wireless updates to both Arduino sketches and the Wi-Fi module firmware
• 14 accessible digital I/O pins and 6 analogue inputs
• Familiar Uno footprint with USB connection, power jack, ICSP header and reset button

Power and Development

The board can be powered via USB or an external 7–12V source, with an operating voltage of 5V. Its ATmega4809 microcontroller uses AVR core architecture and runs at a clock speed of 16 MHz. Wireless programming support helps streamline remote deployment and maintenance of connected projects.

Applications

• IoT and embedded projects
• Robotics, drones and interactive installations
• Applications requiring encrypted data transmission

The Arduino Uno WiFi Rev2 is a practical choice for wireless projects that need onboard motion sensing, secure Wi-Fi communication and the familiar Uno form factor.