Arduino UNO R4 WiFi
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The Arduino UNO R4 WiFi combines the power of a Renesas RA4M1 Arm Cortex-M4 microcontroller with an ESP32-S3 module for wireless connectivity. With 14 digital I/O pins, 6 analog inputs, and built-in CAN bus, this board is ideal for IoT projects and advanced prototyping. It features a USB-C port, 48 MHz main clock, and up to 240 MHz on the ESP32-S3, providing ample performance for complex applications.
add_circle The Upside
- check Integrated WiFi and Bluetooth for IoT projects
- check Compatible with existing Arduino shields and code
- check Higher performance with dual-core architecture
remove_circle The Downside
- close Higher power consumption than basic UNO models
- close Limited 8 mA per I/O pin
- close ESP32-S3 operates at 3.3V, requiring level shifting for 5V peripherals
Specifications & features
Key features
- check_circle Renesas RA4M1 Arm Cortex-M4 microcontroller
- check_circle ESP32-S3 WiFi and Bluetooth module
- check_circle 14 digital I/O pins and 6 analog inputs
- check_circle USB-C connectivity
- check_circle CAN bus interface
Specifications
Analog Input Pins
6
Clock Speed (ESP32-S3)
up to 240 MHz
Clock Speed (Main)
48 MHz
Communication
UART, I2C, SPI, CAN
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