The Official Arduino UNO R4 WiFi ABX00087 (Made in Italy) is a next-generation development board that brings powerful 32-bit performance, built-in WiFi, and modern peripherals to the classic UNO form factor. Supplied by BDTronics, this authentic Italian Arduino board is powered by the Renesas RA4M1 microcontroller combined with an ESP32-S3 WiFi module, making it ideal for IoT, automation, robotics, and advanced embedded applications.

This board marks a major evolution of the Arduino UNO family, upgrading from 8-bit to a 32-bit Arm Cortex-M4 architecture while maintaining compatibility with existing shields and development workflows. The RA4M1 runs at 48 MHz and includes advanced peripherals such as DAC, OPAMP, RTC, MPU, CTSU touch sensing, and high-resolution ADC, enabling professional-grade embedded designs.

The onboard ESP32-S3-MINI-1-N8 module provides integrated Wi-Fi and Bluetooth connectivity, enabling wireless communication, cloud connectivity, and IoT development without external modules. Communication between the RA4M1 and ESP32-S3 is handled through a logic-level translator for stable 5V-to-3.3V operation. With expanded memory, USB-C power, Qwiic connector support, and rich communication interfaces, the Arduino UNO R4 WiFi is ideal for education, prototyping, and production-ready applications. BDTronics supplies the original Made in Italy version for guaranteed authenticity and performance.

Features:

• Official Arduino UNO R4 WiFi ABX00087 Made in Italy

• 32-bit Renesas RA4M1 microcontroller with Arm Cortex-M4 core

• 48 MHz CPU with floating point unit (FPU)

• Built-in ESP32-S3-MINI-1-N8 module for WiFi and Bluetooth

• Dual-MCU architecture for powerful processing and connectivity

• 5V operating logic for full UNO shield compatibility

• USB Type-C connector for power and data

• 256 KB Flash, 32 KB SRAM, and 8 KB EEPROM

• Integrated Real-Time Clock (RTC)

• Memory Protection Unit (MPU) for safer applications

• Capacitive Touch Sensing Unit (CTSU)

• 14-bit ADC and up to 12-bit DAC

• Onboard operational amplifier (OPAMP)

• Two I2C buses including Qwiic connector

• SPI, UART, and CAN interface support

• Built-in WiFi 802.11 b/g/n (2.4 GHz)

• Bluetooth 5 support via ESP32-S3

• Logic-level translator between 5V and 3.3V domains

• Compatible with Arduino IDE and libraries

• Backward-compatible UNO form factor and pin layout

• Ideal for IoT, automation, robotics, and smart devices

Applications and Use Cases

• IoT and cloud-connected devices

• Smart home and automation systems

• Industrial monitoring and control

• Robotics and autonomous systems

• Wireless sensor networks

• Data logging and telemetry

• Embedded product development

• Educational and academic projects

• Prototyping to production workflows

• Edge computing applications

How to Use and Getting Started

• Power the board using USB-C or an external 6–24V power supply

• Install the latest Arduino IDE

• Select “Arduino UNO R4 WiFi” from the board manager

• Connect via USB and upload sketches

• Use built-in WiFi and Bluetooth for wireless communication

• Access I2C via standard pins or Qwiic connector

• Interface SPI, UART, CAN, sensors, and actuators

• Develop IoT applications using Arduino libraries

• Monitor output using Serial Monitor

• Deploy firmware for real-world applications

Technical Specifications:

• Product Name: Arduino UNO R4 WiFi

• Model Number: ABX00087

• Microcontroller (Main): Renesas RA4M1 (R7FA4M1AB3CFM#AA0)

• CPU Core: Arm Cortex-M4 with FPU

• Clock Speed: 48 MHz

• Operating Voltage (MCU): 5 V

• Recommended Input Voltage (VIN): 6–24 V

• Power Input: USB-C (5 V) or barrel jack

• Flash Memory: 256 KB

• SRAM: 32 KB

• EEPROM: 8 KB

• USB: USB 2.0 Full Speed

• ADC: 14-bit

• DAC: Up to 12-bit

• OPAMP: Integrated

• RTC: Yes

• MPU: Yes

• CTSU: Yes

• Communication Interfaces:

  • UART: 1 (D0, D1)

  • SPI: 1 (D10–D13, ICSP)

  • I2C: 2 (A4/A5 and Qwiic)

  • CAN: 1 (D4, D5, external transceiver required)

Wireless Module (ESP32-S3-MINI-1-N8):

• CPU: Xtensa dual-core 32-bit LX7

• Operating Voltage: 3.3 V

• Crystal Frequency: 40 MHz

• WiFi Standard: IEEE 802.11 b/g/n (2.4 GHz)

• Max Data Rate: up to 150 Mbps

• Bluetooth Version: Bluetooth 5

• Integrated antenna

Why Choose Arduino UNO R4 WiFi from BDTronics

• Official Made in Italy Arduino product

• Powerful 32-bit RA4M1 microcontroller

• Built-in WiFi and Bluetooth via ESP32-S3

• Backward compatible with UNO shields

• Expanded memory and peripherals

• Ideal for IoT and connected applications

• Stable 5V logic with modern architecture

• Strong ecosystem and community support

• Perfect for education, development, and production

• Trusted authentic supply from BDTronics Bangladesh

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