Arduino UNO R4 WiFi Development Board – Built-In WiFi Connectivity

The Arduino UNO R4 WiFi is an advanced development board designed for embedded and connected applications. It is powered by the Renesas RA4M1 Arm Cortex-M4 microcontroller running at 48 MHz, with expanded memory resources including 32 kB SRAM and 256 kB flash. The board features a USB-C interface, supports input voltages up to 24 V, and includes CAN bus and a 12-bit DAC for extended system control. It integrates an Espressif ESP32-S3 module to provide built-in WiFi connectivity. Fully compatible with Arduino UNO R3 shields and 5 V logic, it is suitable for engineering education, IoT prototyping, and professional development projects.

• Renesas RA4M1 32-bit Arm Cortex-M4 microcontroller
• ESP32-S3 module with integrated WiFi connectivity
• 48 MHz operating clock frequency
• 32 kB SRAM and 256 kB flash memory
• USB-C interface with up to 24 V input support
• CAN bus interface for multi-board communication
• Compatible with Arduino IDE and UNO R3 shields
• 5 V logic level for direct sensor and actuator compatibility
• Standard UNO form factor for mechanical shield compatibility
• 14 digital GPIO pins with PWM support
• 6 analog input channels with 12-bit ADC
• 12-bit digital-to-analog converter output
• 12 × 8 onboard LED matrix for visual feedback
• Integrated real-time clock with battery backup support
• USB HID support for keyboard and mouse emulation
• SWD interface for advanced debugging and programming
• Onboard power management with multiple voltage regulation

• Arduino UNO R4 WiFi - 3D Model
• Arduino UNO R4 WiFi - 3D Case
• Renesas RA4M1 Group Datasheet
• How to use Arduino UNO R4 WiFi Development Board for IoT & Edge AI
• Arduino Uno R4 Wifi LESSON 1: Getting Started for Absolute Beginners
  
• Build Your Own IoT-Based Weather Monitoring Station | Arduino UNO R4 WiFi Project

• Arduino Uno R4 Wi-Fi projects
• Build Your Own IoT-Based Weather Monitoring Station
• Voltaat tutorials for Arduino
• Voltaat Youtube Channel