Arduino Uno Wifi Rev 2

The Arduino Uno Wifi Rev 2 has built in Wifi and Bluetooth Support with the familiar UNO form factor. Functionally the same as the Arduino Uno Rev3, but with the addition of WiFi / Bluetooth® and some other enhancements

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Last Updated: 05/29/2024




The Arduino Uno WiFi Rev 2 is functionally the same as the Arduino Uno Rev3, but with the addition of WiFi / Bluetooth® and some other enhancements. It incorporates the brand new ATmega4809 8-bit microcontroller from Microchip and has an onboard IMU (Inertial Measurement Unit) LSM6DS3TR. The Arduino UNO WiFi Rev.2 is the easiest point of entry to basic IoT with the standard form factor of the UNO family. Add this board to a device and you'll be able to connect it to a WiFi network, using its secure ECC608 crypto chip accelerator.

  • Built in Wifi Chip: u-blox NINA-W102 with integrated TCP/IP protocol stack that can provide access to a Wi-Fi network, or act as an access point
  • Bluetooth® and Bluetooth® Low Energy
  • Both client and host bluetooth capabilities
  • Standard form factor of the UNO family
  • 14 digital input/output pins (5 can be used as PWM outputs)
  • 6 analog inputs
  • a USB connection
  • a power jack
  • an ICSP header
  • a reset button
  • It contains everything needed to support the microcontroller. Simply connect it to a computer with a USB cable or power it with an AC adapter or battery to get started.
  • Microchip ATmega4809 microcontroller, but thanks to the compatibility layer included in the core, you can run all the sketches made for the UNO's ATmega328P microconntroller on the ATmega4809


Operating Voltage5V
Input Voltage (recommended)7 - 12V
Digital I/O Pins14 — 5 Provide PWM Output
PWM Digital I/O Pins5
Analog Input Pins6
DC Current per I/O Pin20 mA
DC Current for 3.3V Pin50 mA
Flash Memory48 KB (ATmega4809)
SRAM6,144 Bytes (ATmega4809)
EEPROM256 Bytes (ATmega4809)
Clock Speed16 MHz
Radio moduleu-blox NINA-W102
Secure ElementATECC608A
Inertial Measurement UnitLSM6DS3TR
Length68.6 mm
Width53.4 mm
Weight25 g
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