Arduino Nano R4

Arduino Nano R4

The Arduino Nano R4 is the latest and most powerful member of Arduino’s popular Nano series. Equipped with the Renesas RA4M1 32-bit microcontroller, this board offers high processing power, expanded memory, and a wide range of peripherals in a compact form factor. It retains the classic Nano form factor, ensuring full compatibility with existing shields and accessories. With a 5V operating voltage, built-in Qwiic connector, and castellated pin design, it is an ideal choice for both prototyping and production-oriented projects. Whether you’re working on embedded systems, industrial automation, or custom hardware designs, the Arduino Nano R4 delivers reliable performance.

 

 

With a 48 MHz clock speed, this board, featuring 256 kB Flash memory, 32 kB SRAM, and 8 kB EEPROM, can easily handle complex calculations and support large projects. It is equipped with features such as a 12-bit DAC, CAN Bus, OP AMP, Real-Time Clock (RTC), and programmable RGB LED. The Qwiic connector simplifies sensor and actuator integration, while castellated pins streamline integration into custom PCBs. The USB-C port enhances compatibility with modern devices, and HID (Human Interface Device) support allows it to function as a mouse or keyboard when connected to a computer. This feature provides a significant advantage for interactive projects.

The Arduino Nano R4 is optimized for embedded systems, industrial automation, and prototyping projects. Its compact 18 x 45 mm dimensions, single-sided component design, and production-oriented features offer a reliable solution for space-constrained projects. Supported by Arduino’s extensive ecosystem and familiar development environment, this board seamlessly integrates with existing libraries and community projects. It is a versatile solution for needs ranging from beginner to professional applications.

 

 

Key Innovations:

• 32-bit Microcontroller: Offers a 48 MHz clock speed with the 32-bit Renesas RA4M1 (Arm® Cortex®-M4) microcontroller.

• Expanded Memory: Provides 256 kB Flash, 32 kB SRAM, and 8 kB EEPROM.

• USB-C Connectivity: Uses a modern and durable USB-C port.

• Additional Peripherals: Provides advanced capabilities with 12-bit DAC, CAN Bus, OP AMP, Real-Time Clock (RTC), and programmable RGB LED.

• Qwiic Connector: The Nano R4 offers a built-in Qwiic I²C connector for rapid sensor and peripheral integration.

• HID Support: The Nano R4 provides built-in HID support for mouse and keyboard emulation.

 

Arduino Nano R4 Technical Specifications:

• Board Name: Arduino® Nano R4

• SKU: ABX00142

• Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4)

• USB: USB-C® Programming Port

• Digital I/O Pins: 21 (all exposed I/O pins can be used as digital I/O)

• Analog Input Pins: 8

• DAC: 1 (12-bit, on A0 pin)

• PWM Pins: 6

• External Interrupts: 2, 3

• UART: 1x

• I2C: 2x (5V: A4, A5 / 3.3V: Qwiic, J3, J4)

• SPI: 1x

• CAN: 1x CAN Bus (external transceiver required)

• Circuit Operating Voltage: 5V

• Input Voltage (VIN): 6-21V

• DC Current per I/O Pin: 8 mA

• Clock Speed: Main core 48 MHz

• Memory: 256 kB Flash, 32 kB RAM, 8 kB EEPROM

• Dimensions: 18 mm (Width) x 45 mm (Length)

• Additional Features: Real-Time Clock (RTC), 14-bit ADC resolution, HID support, Qwiic I²C connector, OP AMP, programmable RGB LED

• Certifications: CE, FCC, RoHS, REACH, WEEE, UKCA, RCM, ISED/IC

 

Power:

• Operating Voltage: 5V

• Input Voltage (VIN): 6-21V

• Power Sources: USB-C (5V), VIN pin

• Protection: Overvoltage and reverse polarity protection

• Current per I/O Pin: 8 mA

 

Memory:

• Flash Memory: 256 kB

• SRAM: 32 kB

• EEPROM: 8 kB

 

Input/Output:

• Digital I/O Pins: 21 (all exposed I/O pins can be used as digital I/O, 6 with PWM support)

• Analog Input Pins: 8 (A0-A7, 14-bit ADC resolution)

• DAC: 1 (12-bit, on A0 pin)

• OP AMP: A1, A2, A3 pins

• VRTC: J5 pin

 

Communication:

• UART: 1x

• I2C: 2x (5V: A4, A5 / 3.3V: Qwiic, J3, J4)

• SPI: 1x

• CAN Bus: 1x (external transceiver required)

 

Programming:

• Programming Environment: Arduino IDE, Arduino Cloud Editor

• HID Support: Mouse and keyboard emulation

 

USB Overcurrent Protection:

• Protection: Protection against short circuits and overcurrent on the USB port

• Power Selection: Automatic power selection between USB and VIN

 

Frequently Asked Questions:

• Are sketches written for the Arduino UNO R4 Minima compatible with the Arduino Nano R4? Yes, sketches written for the UNO R4 Minima are compatible with the Nano R4. However, adjustments to the sketch are needed to account for pinout differences.

• Can hardware compatible with the Arduino Nano (A000005) be used with the Arduino Nano R4? Yes, the Arduino Nano R4 is designed to maintain the same pinout and electrical compatibility as previous Nano models. Existing shields and hardware can be used seamlessly, so you don’t need to make significant changes to upgrade your projects.

• Can sketches developed for the Arduino Nano (A000005) be used on the Nano R4? Yes, sketches developed using the Arduino API are generally compatible. However, sketches containing instructions specific to the AVR architecture may require some modifications for compatibility.

 

Useful Links / Documentation:

• Arduino IDE
• Arduino Nano R4 Official Documentation
• Arduino Nano R4 Datasheet
• Arduino Nano R4 Technical Drawings and CAD Files
• Arduino Tutorials Blog Series
• Arduino Tutorials Video Series

 

Compatible Products:

• Arduino Sensors and Modules
• Arduino Shield Types
• Tools and Equipment
• Types of Components
• Soldering and Prototyping Equipment
• Arduino Books

 

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