Arduino Nano R4 Development Board with Headers, Renesas RA4M1 48 MHz

The Arduino Nano R4 is a compact and powerful development board built around the Renesas RA4M1 microcontroller, operating at a frequency of 48 MHz. Designed to bridge the gap between initial prototyping and final production, this board offers a robust set of features including 256 KB of flash memory, 32 KB of RAM, and 8 KB of EEPROM. With its pre-soldered headers, it provides an immediate, plug-and-play solution for developers looking to integrate high-performance computing into space-constrained electronic projects.

Advantages

This board stands out due to its seamless compatibility with the existing Arduino ecosystem, allowing users to leverage familiar tools and libraries while benefiting from the enhanced capabilities of the Renesas RA4M1 processor. The inclusion of a Qwiic connector and an additional 5V I2C port simplifies the connection of various sensors and peripherals, significantly reducing wiring complexity. Furthermore, the single-sided component design and castellated pins make it exceptionally easy to mount onto custom PCBs, while the integrated programmable RGB LED provides immediate visual feedback for debugging and system status monitoring.

Suitable for

• Embedded automation systems
• IoT sensor nodes and data logging
• Compact robotics and motion control
• Educational projects requiring high-performance microcontrollers
• Rapid prototyping of custom hardware solutions

When it may not be suitable

The Arduino Nano R4 may not be the ideal choice for projects requiring extremely low power consumption, as its 5V operating voltage and high-performance processor are optimized for processing power rather than battery-constrained longevity. Additionally, for applications requiring massive amounts of external memory or high-speed video processing, more specialized single-board computers might be necessary.

Key specifications

• Microcontroller: Renesas RA4M1
• Processor frequency: 48 MHz
• Flash memory: 256 KB
• RAM: 32 KB
• EEPROM: 8 KB
• Operating voltage: 5 V
• Input voltage range: 6 - 21 V
• DC current per I/O pin: 8 mA
• Dimensions: 18 x 45 mm

How to use

To begin using the Arduino Nano R4, connect the board to your computer via a compatible USB cable. Ensure that the appropriate board support package is installed in your Arduino IDE or compatible development environment. Once connected, you can upload your code directly to the board. The pre-soldered headers allow you to insert the board directly into a breadboard for testing circuits. For permanent installations, the castellated pins can be soldered directly onto a custom carrier board or PCB.

What to consider before purchase

• Verify that your existing sensors and modules are compatible with 5V logic levels.
• Ensure the physical dimensions of 18 x 45 mm fit within your intended enclosure.
• Check if your project requires specific interfaces like CAN, DAC, or OpAmp, which are supported by this board.
• Confirm that your power supply provides a stable voltage within the 6-21V range if not powering via USB.

Usage recommendations

For optimal performance and longevity, ensure proper ventilation if the board is enclosed in a small housing, especially when operating near the upper limit of the input voltage range. Always use ESD-safe practices when handling the board to prevent damage to the microcontroller.