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] - Renesas RA4M1 + ESP32-S3, Wi-Fi, Bluetooth, USB-C, CAN, 12-bit DAC, OP AMP, Qwiic Connector, 12x8 LED Matrix for Advanced IoT & Embedded Projects

Product ID: 546032781

Details

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

⚡Dual-core 240 MHz power

📶Wi-Fi & Bluetooth 5.0

🔌Modern USB-C + CAN + Qwiic

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Description

🚀 Elevate your IoT game with Arduino UNO R4 WiFi — where power meets wireless freedom!

BUILT IN 12 X 8 LED MATRIX - Instant visual feedback and dynamic displays right on your board—make your projects truly interactive.
PRECISION ANALOG CONTROL - 12-bit DAC and OP-AMP deliver crystal-clear analog output for audio, sensors, and advanced signal processing.
SEAMLESS WIRELESS CONNECTIVITY - Stay effortlessly connected with integrated Wi-Fi and Bluetooth 5.0—perfect for smart devices and remote control.
NEXT GEN USB C INDUSTRIAL CAN - Experience rapid programming and robust real-time communication with USB-C and CAN bus support.
POWERHOUSE DUAL CORE PROCESSING - Harness the combined might of Renesas RA4M1 and ESP32-S3 for lightning-fast, multitasking IoT projects.

The Arduino UNO R4 WiFi is a cutting-edge microcontroller development board combining a 240 MHz Renesas RA4M1 CPU with an ESP32-S3 Wi-Fi/Bluetooth chip. Featuring modern USB-C, CAN bus, and Qwiic connectors, it supports versatile IoT and edge AI applications. Its integrated 12x8 LED matrix and high-precision 12-bit DAC with OP-AMP enable advanced analog and visual projects. Ideal for professionals and makers seeking seamless wireless connectivity and powerful processing in a compact, beginner-friendly form factor.

Specifications

ASIN	B0C8V88Z9D
Box Contents	LED matrix, Qwiic connector, ESP32-S3 module
Brand Name	Arduino
CPU Model	Core M Family
Compatible Devices	Devices with UART, SPI, I2C, or CAN interfaces
Country of Origin	Italy
Customer Reviews	4.7 4.7 out of 5 stars (2,016)
External Testing Certification	Não aplicável
Item Dimensions L x W x H	8L x 20W x 26H centimetres
Item Weight	20 Grams
Manufacturer	Arduino
Manufacturer Part Number	ABX00087
Model Name	UNO R4 WiFi
Model Number	ABX00087
Network Connectivity Technology	USB
Operating System	FreeRTOS
Processor Brand	Renesas
Processor Count	1
Processor Speed	2.4E+2 MHz
Product Warranty	2 year manufacturer
RAM Memory Installed	0.03 MB
RAM Memory Technology	SRAM
Total USB Ports	1
Wireless Compability	Bluetooth

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