Original Arduino UNO R4 WIFI

Introducing the latest addition to the Arduino lineup, the Arduino UNO R4 WiFi board, which represents a significant leap forward in functionality and capabilities. Building upon the rich heritage of the UNO series, this advanced version incorporates cutting-edge features to empower your projects with remarkable efficiency.

The key highlight of the UNO R4 WiFi lies in the seamless integration of the ESP32-S3 Wi-Fi module (ESP32-S3-MINI-1-N8), bestowing the UNO with built-in Bluetooth and Wi-Fi functionalities. This integration ensures a comprehensive connectivity solution for enhanced versatility and convenience.

As a member of the first UNO series of 32-bit development boards, the UNO R4 WiFi marks a departure from its predecessors, which relied on 8-bit AVR microcontrollers. Leveraging a robust 48 MHz Arm Cortex-M4 microprocessor, this board leverages the prowess of the Renesas RA4M1 series microcontroller (R7FA4M1AB3CFM#AA0).

Its expanded memory capabilities are truly impressive, featuring 256 kB flash, 32 kB SRAM, and 8 kB of EEPROM. To facilitate seamless and efficient communication between the RA4M1 and ESP32-S3 modules, a reliable logic level translator (TXB0108DQSR) is employed, ensuring optimal performance at all times.

Upgrade to the Arduino UNO R4 WiFi today and unlock an unparalleled level of innovation within the realm of Arduino, ushering in a new era of limitless possibilities for your projects.

Also, read our blog on the Best Arduino Board explaining the different types of Arduino boards and how to select the right Arduino board for your needs.

Features

The UNO R4 is now a 32-bit microcontroller board, previously based on 8-bit AVR.
The board features 14 digital I/O ports and 6 analog channels.
Dedicated pins for I2C, SPI, and UART connections.
Significantly larger memory: 8 times more flash memory (256 kB) and 16 times more SRAM (32 kB).
Fastest 48 MHz clock speed, 3x faster than its predecessors.
Onboard ESP32-S3 module for Wi-Fi and Bluetooth connectivity.
Onboard 12x8 LED matrix, making it one of the most visually unique best Arduino boards to date. The LED matrix is fully programmable, allowing you to load anything from still frames to custom animations.

Also check the Arduino UNO R4 Minima. It is a development board featuring a 32-bit microcontroller with a 48 MHz Arm Cortex-M4 processor, providing enhanced performance compared to its predecessors.

The board offers expanded memory with 256 kB flash memory, 32 kB SRAM, and 8 kB data memory (EEPROM). It comes with additional peripherals, including a Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed Module (USBFS), and more.

Pin Diagram:

NEW Arduino UNO R4 WiFi | FULL Walkthrough!

Package Includes:

1 x Arduino UNO R4 WIFI

Specifications:

Overview	48 MHz Arm Cortex-M4 microprocessor with a floating point unit (FPU) 5 V operating voltage Real-time Clock (RTC) Memory Protection Unit (MPU) Digital-to-analog Converter (DAC)
Memory	256 kB Flash Memory 32 kB SRAM 8 kB Data Memory (EEPROM)
Peripherals	Capacitive Touch Sensing Unit (CTSU) USB 2.0 Full-Speed Module (USBFS) 14-bit ADC Up to 12-bit DAC Operational Amplifier (OPAMP)
Power	Operating voltage for RA4M1 is 5 V Recommended input voltage (VIN) is 6-24 V Barrel jack connected to VIN pin (6-24 V) Power via USB-C at 5 V
Communication	1x UART (pin D0, D1) 1x SPI (pin D10-D13, ICSP header) 1x I2C (pin A4, A5, SDA, SCL) 1x CAN (pin D4, D5, external transceiver is required)
Wi-Fi	Wi-Fi support with 802.11 b/g/n standard (Wi-Fi® 4) Bit rate at up to 150 Mbps 2.4 GHz band
Bluetooth	Bluetooth 5
Shipment Weight	0.03 kg
Shipment Dimensions	10 × 8 × 4 cm