What is the main difference between the Uno R4 WiFi and the Uno R4 Minima?

The Uno R4 WiFi includes an on-board ESP32-S3 for Wi-Fi and Bluetooth, plus an LED matrix. The Uno R4 Minima is a more cost-effective version without these features.

Is the Arduino Uno R4 series backward compatible with my old projects?

Yes, the Uno R4 boards maintain the same form factor, pinout, and 5V operating voltage as the UNO R3, ensuring compatibility with your existing shields and projects.

What is the Qwiic connector for?

The Uno R4 WiFi's Qwiic connector allows for quick plug-and-play integration with a vast ecosystem of I2C sensors and modules, including our own Arduino Modulinos.

How does the Uno R4 compare to the original Uno R3?

The Uno R4 is a significant upgrade with a faster 32-bit processor, more memory, and new features like a DAC and CAN Bus, while keeping the classic 5V operating voltage.

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UNO R4 WiFi [ABX00087] – Next-Generation Microcontroller Board with ESP32 WiFi & Bluetooth, Powerful RA4M1 Processor, Expanded Memory, and Easy IoT Integration

Product ID: 539320933

Details

Brand
Arduino
CPU model
Core M Family
CPU speed
2.4E+2 MHz
Installed RAM memory size
0.03 MB
Model name
UNO R4 WiFi

⚡32-bit Renesas RA4M1 CPU @ 240 MHz

📶Built-in ESP32 WiFi & Bluetooth

🔌Modern USB Type-C connectivity

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Description

🚀 Elevate your innovation game with Arduino UNO R4 WiFi — where speed meets smart connectivity!

POWERHOUSE PROCESSING - Experience lightning-fast 32-bit Renesas RA4M1 microcontroller performance that crushes your projects with ease.
FUTURE READY USB C PORT - Universal USB Type-C port for faster data transfer and hassle-free connections across all your devices.
COMPACT LIGHTWEIGHT DESIGN - Weighing just 20 grams with a sleek form factor, it fits perfectly into any workspace or prototype setup.
SEAMLESS WIRELESS INTEGRATION - Built-in ESP32 WiFi and Bluetooth enable effortless IoT connectivity and smart device control.
VIBRANT LED MATRIX EXPANDABILITY - 12x8 LED matrix plus Qwiic connectors let you create dazzling visual projects and easily add sensors or modules.

The Arduino UNO R4 WiFi is the 4th generation microcontroller board featuring a powerful 32-bit Renesas RA4M1 processor running at 240 MHz, integrated ESP32 WiFi and Bluetooth for wireless projects, and a versatile USB Type-C port. It includes a 12x8 LED matrix and Qwiic connectors for easy expansion, making it the ultimate compact and lightweight platform for next-level IoT and embedded applications.

Specifications

ASIN	B0C8V88Z9D
Best Sellers Rank	#10,914 in Computers ( See Top 100 in Computers ) #148 in Single-Board Computers
Brand	Arduino
CPU Model	Core M Family
Compatible Devices	Smartphones, Personal Computers, Laptops, Tablets, Sensors (temperature, humidity, movement, etc. ), Actuators (Motors, Relays, LEDs), Arduino Expansion Modules, LCD Displays, Keyboards, Cameras, Speakers, Microphones
Connectivity Technology	USB-C
Customer Reviews	4.7 4.7 out of 5 stars (2,009)
External Testing Certification	Não aplicável
Item Dimensions L x W x H	8L x 20W x 26H centimeters
Item Weight	20 Grams
Manufacturer	Arduino
Mfr Part Number	ABX00087
Model Name	UNO R4 WiFi
Model Number	ABX00087
Operating System	FreeRTOS
Processor Brand	Renesas
Processor Count	1
Processor Speed	2.4E+2 MHz
RAM Memory Installed	0.03 MB
RAM Memory Technology	SRAM
Total Usb Ports	1
Wireless Compability	Bluetooth

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