---
product_id: 254476757
title: "Uno WiFi Rev2 - ABX00021"
brand: "arduino"
price: "$150.06"
currency: USD
in_stock: true
reviews_count: 5
category: "Arduino"
url: https://www.desertcart.us/products/254476757-uno-wifi-rev2-abx00021
store_origin: US
region: United States of America
---

# Powerful ATmega4809 MCU Integrated ESP32 WiFi & Bluetooth Crypto-authentication chip Uno WiFi Rev2 - ABX00021

**Brand:** arduino
**Price:** $150.06
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your IoT game with Arduino UNO WiFi Rev.2 — where power meets wireless freedom!

## Quick Answers

- **What is this?** Uno WiFi Rev2 - ABX00021 by arduino
- **How much does it cost?** $150.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/254476757-uno-wifi-rev2-abx00021)

## Best For

- arduino enthusiasts

## Why This Product

- Trusted arduino brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rock-Solid Security:** Crypto-authentication chip ensures encrypted, tamper-proof communication for your IoT ecosystem.
- • **Versatile Connectivity:** 14 digital I/O pins, 6 analog inputs, UART, SPI, and I2C interfaces empower limitless peripheral expansion.
- • **Wireless IoT Powerhouse:** Built-in ESP32 module delivers seamless 2.4 GHz WiFi & Bluetooth LE connectivity for next-level smart projects.
- • **Next-Gen Microcontroller:** ATmega4809 boosts memory and speed, perfect for complex automation and industrial-grade applications.
- • **Plug & Play Compatibility:** Retains classic UNO form factor and supports Arduino IDE, Arduino Cloud, and OTA updates for effortless integration.

## Overview

The Arduino UNO WiFi Rev.2 combines the trusted ATmega4809 microcontroller with an integrated ESP32 module, enabling secure WiFi and Bluetooth connectivity. Designed for advanced IoT and automation projects, it features a crypto-authentication chip for encrypted communication, extensive I/O options, and full compatibility with Arduino IDE and cloud services. Its classic UNO form factor ensures seamless use with existing shields, making it a versatile and powerful choice for professionals pushing the boundaries of connected devices.

## Description

Buy Arduino UNO WiFi Rev.2 [ABX00021] – Wireless-Enabled Microcontroller Board with ATmega4809, Built-in ESP32 WiFi, Secure IoT Connectivity, and Bluetooth Support online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Nice!
Review: Il est préférable de se tourner vers la carte Uno R4.

## Features

- Enhanced Arduino UNO with Built-in WiFi – Features an integrated ESP32 module, enabling wireless IoT applications with secure, high-speed connectivity.
- Powerful ATmega4809 Microcontroller – Offers increased memory and performance compared to the classic Arduino UNO, ideal for advanced projects.
- Seamless Bluetooth & WiFi Support – Includes 2.4 GHz WiFi and Bluetooth LE for wireless data transmission, smart home automation, and remote monitoring.
- Secure IoT Connectivity – Equipped with a crypto-authentication chip, ensuring encrypted communication and secure data exchange.
- Fully Compatible with Arduino IDE – Supports Arduino Cloud, OTA (Over-the-Air) programming, and seamless integration with Arduino software and libraries.
- Expanded I/O and Connectivity Options – Includes 14 digital I/O pins, 6 analog inputs, UART, SPI, and I2C interfaces, supporting multiple peripherals.
- Ideal for Home Automation & Industrial Applications – Perfect for IoT projects, smart sensors, remote control systems, and robotics.
- USB Type-B for Easy Power & Programming – Connects via standard USB Type-B cable, making it easy to power, debug, and upload code.
- Backward Compatibility with Classic UNO Shields – Retains Arduino UNO R3 form factor, ensuring compatibility with existing shields and accessories.
- Efficient Power Management & Low Power Consumption – Optimized for battery-powered IoT applications and energy-efficient designs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MK598QV |
| Best Sellers Rank | #62,170 in Computers ( See Top 100 in Computers ) #835 in Single-Board Computers |
| Item model number | ABX00021 |
| Manufacturer | Arduino |
| Product Dimensions | 8 x 5.8 x 2.3 cm; 40 g |

## Product Details

- **Brand:** Arduino
- **CPU model:** Unknown
- **CPU speed:** 2.4 GHz
- **Connectivity technology:** Wi-Fi
- **Model name:** Arduino UNO WiFi REV2

## Images

![Uno WiFi Rev2 - ABX00021 - Image 1](https://m.media-amazon.com/images/I/61hvzB244kL.jpg)

## Questions & Answers

**Q: Can i use adafruit motor shield for arduino v2.3 with this board?**
A: 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: does it support  I2C?**
A: Yes

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***A on 27 May 2024*

Nice!

### ⭐ Review
*by L***S on 25 April 2025*

Il est préférable de se tourner vers la carte Uno R4.

### ⭐⭐⭐⭐⭐ Review
*by H***O on 22 June 2023*

Arduino original 100%, excelente calidad.

## 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)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-28*