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Explore Arduino® UNO R4 WiFi
The Arduino Uno R4 WiFi board is the latest addition to the Arduino family, offering a suite of advanced features while maintaining the robustness and versatility you’ve come to expect. This board brings a significant boost in processing power, thanks to its 32-bit Arm® Cortex®-M4 microcontroller, and it preserves compatibility with the standard form factor and shield stackability of the UNO series.
What’s new about Uno R4 compared to R3?
Enhanced Processing: Transition from an 8-bit AVR to a 32-bit Arm® Cortex®-M4 microcontroller.
Memory Upgrade: Elevate your projects with 32KB of SRAM and 256KB of NAND flash memory.
Advanced Connectivity: Experience seamless connectivity with USB-C and Wi-Fi.
Improved Performance: Accomplish more with faster processing and greater memory capacity.
Flexible Power Supply: Power up your board with up to 24V for broader project possibilities.
In addition to the above upgrades, the R4 WiFi also introduces the following new features:
New Features
Wi-Fi®: Provides wireless connectivity ideal for various IoT projects, enabled by the ESP32-S3 module.
Bluetooth®: Offers short-range wireless communication between devices, also powered by the ESP32-S3 module.
Built-in Real-Time Clock (RTC): Ideal for time-sensitive applications. Includes additional pins for battery-powered operation and an “OFF” pin to turn off the board while keeping the RTC running.
12x8 LED Matrix: A simple way to display data or create animations.
DAC Channel: Achieve precise analog outputs, perfect for audio projects.
14-bit ADC: The upgraded Analog-to-Digital Converter (ADC) in the Arduino Uno R4 offers a resolution of up to 14 bits. This allows for more precise and detailed reading of analog signals compared to the 10-bit resolution of previous versions.
HID Support: Simulate a mouse or keyboard via USB with built-in HID support.
CAN Protocol Support: Extend your reach into automotive and industrial applications.