Arduino UNO REV 4 Boards

Arduino UNO REV 4 Boards feature two versions, the UNO R4 Wi-Fi® and UNO R4 Minima. The Renesas RA4M1 32-bit Arm® Cortex®-M4 processor powers Arduino UNO REV 4 Boards. These boards offer impressive processing power, memory capacity, and overall functionality. The UNO R4 Wi-Fi incorporates an Espressif S3 Wi-Fi module. The UNO R4 Minima is cost-effective without compromising the microcontroller's core capabilities. The UNO R4 maintains the same form factor, shield compatibility, and 5V operating voltage as the UNO R3.

Features

Renesas RA4M1 32-bit Arm Cortex-M4 processor
The UNO R4 series offers two versions, the UNO R4 Wi-Fi and the UNO R4 Minima
- UNO R4 Wi-Fi comes with an Espressif S3 Wi-Fi module in addition to the RA4M1 processor
- UNO R4 Minima is a cost-effective option for those who prefer the microcontroller without additional features

Maintains the same form factor as the UNO R3 with compatibility for existing shields and accessories
5V operating voltage for easy integration with existing projects and components
Processor offers enhanced processing capabilities for complex tasks and calculations

Applications

Internet of Things (IoT)
Robotics
Home automation
Data logging
Sensor integration
Prototyping and product development
Education and learning
Art and interactive installations

Automation and control systems
Wearable technology
Environmental monitoring
Audio and music projects
Internet connectivity and web development
Agriculture and farming
DIY electronics projects

Compatibility with UNO R3

The UNO R4 maintains the same form factor, pinout, and 5V operating voltage as its predecessor, the UNO R3. Existing shields and projects can be easily ported to the board using the ecosystem for the Arduino UNO. Most libraries are compatible out-of-the-box, while those being ported will be tracked on a web page to inform users about alternatives.