Official Arduino UNO R4 WiFi Development Board
Official Arduino UNO R4 WiFi Development Board - Image 2
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SKU: SBCD-0697
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Official Arduino UNO R4 WiFi Development Board

₹2,239.00 (Inclusive of all taxes)
Out of Stock

The Official Arduino UNO R4 WiFi maintains the familiar UNO R3 form factor while integrating a powerful 32-bit microcontroller, built-in Wi-Fi and Bluetooth, an onboard 12×8 LED matrix, and HID support, offering enhanced processing power and connectivity for advanced projects.

Features

  • Maintains standard UNO R3 form factor for broad compatibility.
  • Features integrated ESP32-S3 for Wi-Fi and Bluetooth connectivity.
  • Includes an onboard 12×8 LED matrix for dynamic visual feedback.
  • Equipped with a 32-bit Arm Cortex-M4 microcontroller for significantly enhanced performance.
  • Provides native Human Interface Device (HID) support over USB.

Out of stock

Description

The Official Arduino UNO R4 WiFi marks a pivotal evolution in the Arduino UNO series, transitioning from the traditional 8-bit AVR architecture to a powerful 32-bit Arm Cortex-M4 microcontroller. This iteration integrates an ESP32-S3-MINI-1-N8 module, endowing the board with native Wi-Fi and Bluetooth capabilities, significantly expanding its potential for connected projects while retaining the widely recognized UNO R3 form factor and pin configuration, ensuring compatibility with existing shields and projects.

Engineered for enhanced performance, the UNO R4 WiFi operates at 48 MHz and boasts substantially increased memory, featuring 256 kB of flash, 32 kB of SRAM, and 8 kB of EEPROM. A dedicated logic level translator (TXB0108DQSR) ensures reliable communication between the primary RA4M1 MCU and the integrated ESP32-S3, optimizing performance for complex applications. Additionally, an onboard 12×8 LED matrix offers dynamic visual feedback and customizable animations, making it an ideal platform for visually engaging projects and IoT deployments.

Key Features

  • Integrated Renesas RA4M1 (Arm Cortex-M4) 32-bit microcontroller for superior processing power.
  • Onboard ESP32-S3-MINI-1-N8 module provides 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 connectivity.
  • Features 14 digital I/O pins, 6 analog input channels, and dedicated pins for I2C, SPI, and UART.
  • Expanded memory with 256 KB Flash, 32 KB SRAM, and 8 KB EEPROM for larger programs and data storage.
  • Operates at a clock speed of 48 MHz, offering significantly faster execution compared to previous UNO generations.
  • Includes a programmable 12x8 red LED matrix for custom animations, status indicators, and visual feedback.
  • Supports Human Interface Device (HID) emulation over USB, enabling direct control of computers.
  • Maintains the classic Arduino UNO R3 form factor for compatibility with existing shields and accessories.

Applications

  • IoT prototyping and connected device development.
  • Smart home automation and sensor networks.
  • Educational STEM projects and interactive learning.
  • Robotics control and embedded systems.
  • Wearable technology and compact wireless devices.
  • Creating interactive displays and visual feedback systems.

Technical Specifications

MicrocontrollerRenesas RA4M1 (Arm Cortex-M4 with FPU)
Operating Voltage5V
Input Voltage (VIN)6-24V (Recommended)
Clock Speed48 MHz
Flash Memory256 KB
SRAM32 KB
EEPROM (Data Memory)8 KB
Digital I/O Pins14
Analog Input Pins6
Communication Interfaces1x UART, 1x SPI, 1x I²C, 1x CAN (external transceiver req.)
Wi-Fi ModuleESP32-S3-MINI-1-N8
Wi-Fi Standard802.11 b/g/n (Wi-Fi® 4), 2.4 GHz, up to 150 Mbps
Bluetooth VersionBluetooth 5
Onboard Peripherals12x8 Red LED Matrix, RTC, MPU, DAC, CTSU, USB 2.0 FS, 14-bit ADC, 12-bit DAC, OPAMP
USB ConnectorUSB-C

Frequently Asked Questions

What are the key improvements of the UNO R4 WiFi over previous UNO boards?

The UNO R4 WiFi upgrades to a 32-bit Arm Cortex-M4 microcontroller (Renesas RA4M1) from the traditional 8-bit AVR. It significantly boosts processing speed to 48 MHz and expands memory, while integrating Wi-Fi and Bluetooth via an ESP32-S3 module, and adding an onboard LED matrix.

Is the Arduino UNO R4 WiFi compatible with existing UNO R3 shields?

Yes, the Arduino UNO R4 WiFi maintains the same form factor and pin layout as the UNO R3. This ensures broad compatibility with most existing shields, allowing users to leverage their current accessory ecosystem with the enhanced capabilities of the R4 WiFi.

What wireless connectivity options are available on the UNO R4 WiFi?

The UNO R4 WiFi features integrated Wi-Fi and Bluetooth connectivity, powered by an onboard ESP32-S3 module. It supports Wi-Fi 802.11 b/g/n (Wi-Fi 4) for 2.4 GHz networks and Bluetooth 5, enabling robust wireless communication for IoT and connected applications.

What development environments and tools are supported for the Arduino UNO R4 WiFi?

The Arduino UNO R4 WiFi is fully compatible with the Arduino IDE, allowing seamless development using the familiar Arduino programming language. It also supports advanced debugging through the Renesas Flexible Software Package (FSP) for more complex embedded applications, providing flexibility for developers.

Can the onboard LED matrix be programmed?

Yes, the 12x8 red LED matrix on the Arduino UNO R4 WiFi is fully programmable. Users can create custom animations, display text, show status indicators, or provide visual feedback for their projects directly on the board using the Arduino IDE, enhancing interactive capabilities.

Package Includes

  • 1 x Official Arduino UNO R4 WiFi Development Board (ABX00087)

Additional Information

Weight 0.03 kg
Dimensions 10 × 8 × 4 cm

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