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Arduino UNO WiFi Rev.2 [ABX00021] – Wireless-Enabled Microcontroller Board with ATmega4809, Built-in ESP32 WiFi, Secure IoT Connectivity, and Bluetooth Support

Arduino UNO WiFi Rev.2 [ABX00021] – Wireless-Enabled Microcontroller Board with ATmega4809, Built-in ESP32 WiFi, Secure IoT Connectivity, and Bluetooth Support

Q: Can i use adafruit motor shield for arduino v2.3 with this board?

I don’t see why you couldn’t be able to as long as the 𝐒hield has the shape of an uno. However I had to buy an uno because the processor architecture is different with the WiFi revision 2 because it uses a different chip. The program I wrote was unable to run on the WiFi revision 2 but worked fine on the uno revision 3

Q: What’s the difference between this and the yun rev 2?

I think the revision 2 uses a different processor chip while the revision 1 uses the atmega328 which is the same as the uno

Q: I got it to connect to my WiFi with a sketch but I can't get anything from 192.168.240.1 is this the rigth address?

It seems like you are using the previous version of the uno wifi. The uno wifi rev 2 doesn't have a web panel, in order to control the wifi connection you need to use the WIFI NINA library

Product ID: 254476757

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Details

Brand
Arduino
Model name
Arduino UNO
CPU model
Unknown
CPU speed
2.4 GHz
Connectivity technology
Bluetooth

⚡ATmega4809 High-Performance MCU

📶Integrated ESP32 WiFi & Bluetooth

🔐Crypto-Authentication for Secure IoT

Frequently Bought Together

Arduino UNO WiFi Rev.2 [ABX00021] – ATmega4809 Microcontroller with Built-in WiFi, Bluetooth® Low Energy, Secure ECC608 Crypto Chip, IMU Motion Sensor, Ideal for IoT Projects

ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

UL Listed 9V AC Power Adapter for Arduino UNO, Power Supply Cord for Crosley Cruiser CR8005A, Schwinn Bike A10 A20 A40 220 430 Elliptical Trainer - Center Positive 5.5x2.1mm Plug (6.6ft)

Description

🚀 Unlock the future of IoT with Arduino UNO WiFi Rev.2 – where power meets wireless freedom!

ENERGY SMART DESIGN - Optimized for low power consumption, ideal for battery-powered smart home and industrial setups.
ROCK SOLID SECURITY - Built-in crypto-authentication chip ensures your data stays encrypted and hacker-proof.
PLUG PLAY COMPATIBILITY - Retains classic UNO form factor and supports all your favorite shields and Arduino IDE tools.
POWERHOUSE MICROCONTROLLER - ATmega4809 delivers enhanced memory and speed, perfect for complex, next-gen projects.
WIRELESS FREEDOM BUILT IN - Say goodbye to cables with native WiFi & Bluetooth LE connectivity for seamless IoT integration.

The Arduino UNO WiFi Rev.2 combines the trusted ATmega4809 microcontroller with an integrated ESP32 module, delivering built-in WiFi and Bluetooth LE for secure, high-speed wireless connectivity. Featuring a crypto-authentication chip for encrypted IoT communication, it supports Arduino IDE, OTA programming, and maintains full compatibility with classic UNO shields. Its expanded I/O options and energy-efficient design make it the ultimate choice for advanced smart home, industrial, and robotics projects.

Specifications

Processor	none
RAM	SRAM
Wireless Type	Bluetooth
Brand	Arduino
Series	Arduino UNO WiFi REV2
Item model number	ABX00021
Operating System	FreeRTOS
Item Weight	1.41 ounces
Product Dimensions	3.15 x 2.28 x 0.91 inches
Item Dimensions LxWxH	3.15 x 2.28 x 0.91 inches
Processor Brand	Microchip
Number of Processors	1
Manufacturer	Arduino
ASIN	B07MK598QV
Is Discontinued By Manufacturer	No
Date First Available	December 21, 2018

Have a Question? See What Others Asked

Can i use adafruit motor shield for arduino v2.3 with this board?

does it support I2C?

What’s the difference between this and the yun rev 2?

I got it to connect to my WiFi with a sketch but I can't get anything from 192.168.240.1 is this the rigth address?

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Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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