Product Name

Arduino® UNO R4 WiFi

Key Features of Arduino UNO R4 WiFi

Next-generation Microcontroller:
Powered by Renesas RA4M1 (32-bit ARM® Cortex®-M4) running at 48 MHz,
with 256 KB Flash and 32 KB RAM, offering a massive performance upgrade over the UNO R3.
Built-in Wi-Fi and Bluetooth® Connectivity:
Equipped with Espressif ESP32-S3-MINI module supporting 2.4 GHz Wi-Fi and Bluetooth® Low Energy (BLE),
enabling seamless connection to Arduino IoT Cloud, dashboards, and smart devices.
Full Compatibility with UNO R3:
Maintains 5V logic and pin layout compatibility with UNO R3 shields and accessories,
making it easy to upgrade existing projects without redesigning the circuitry.
Integrated 12×8 LED Matrix:
Onboard 96-pixel LED display allows easy visualization of messages, animations, and indicators.
Built-in RTC and Voltage Detection:
Includes a Real-Time Clock (RTC) and voltage sensing circuit — ideal for IoT and timed automation applications.
USB Type-C Interface:
Modern USB-C port for programming and power supply, supporting 5V–9V input voltage.
Status LEDs:
Multiple onboard LEDs display Wi-Fi, Bluetooth, and power status for real-time feedback.
Software Support:
Compatible with Arduino IDE 2.0, Arduino Cloud, and MicroPython, supporting flexible development environments.

Technical Specifications

รายการ (Item)	รายละเอียด (Specification)
Microcontroller	Renesas RA4M1 (Arm Cortex-M4, 48 MHz)
Connectivity	ESP32-S3-MINI (Wi-Fi 2.4 GHz + BLE)
Flash Memory	256 KB
SRAM	32 KB
Operating Voltage	5V
Input Voltage	6–24V
Digital I/O Pins	14 (12 PWM)
Analog Input Pins	6
Communication	UART, I2C, SPI
USB Port	USB Type-C
Onboard Display	12×8 LED Matrix
Dimensions	68.6 × 53.4 mm

Product Description

1 × Arduino UNO R4 WiFi Board
1 × USB Type-C Cable (optional)
1 × Quick Start Guide

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