Arduino Nano R4 Compatible Board – Renesas RA4M1 3.3V

Arduino Nano R4 Compatible Development Board with Renesas RA4M1

Take your electronics projects from prototype to production with this Arduino Nano R4 Compatible Development Board powered by the robust Renesas RA4M1 microcontroller. Designed to match the trusted Nano family pinout, this compact board gives makers, students, and engineers a seamless path from breadboard tinkering to final product integration — all within a tiny 45 × 18 mm footprint.

With USB-C programming, a built-in Qwiic connector, castellated pins, and a programmable RGB LED, this board is packed with modern features that make prototyping faster and smarter. It's fully compatible with Arduino's rich ecosystem, community libraries, and intuitive IDE — so you can hit the ground running with minimal learning curve.

Made in Mainland China.

Key Features

• Renesas RA4M1 Microcontroller – the same trusted chip found in the UNO R4 family; minimal code adjustments needed when scaling up
• USB-C Programming Port – modern, reversible connector for fast and reliable programming
• 21 Digital I/O Pins – all exposed I/O pins can be used as digital I/O
• 8 Analog Input Pins – with built-in DAC (A0) and OPAMP support (A1, A2, A3)
• 6 PWM Pins – for precise motor and LED control
• Dual I2C Ports – 5V (A4, A5) and 3.3V (Qwiic / J3, J4) for broad peripheral compatibility
• Built-in Qwiic Connector – quickly add sensors, displays, and actuators without soldering
• Programmable RGB LED – customizable status feedback for smarter debugging and user interaction
• Castellated Pins – ideal for direct PCB soldering and single-sided assembly in production
• Arduino Ecosystem Compatible – works with standard Arduino libraries, shields, and Modulino nodes

Technical Specifications

What's in the Box?

• 1 × Arduino Nano R4 Compatible Development Board (with Pin Headers)

Note: Color may vary slightly due to lighting and display differences. Measurement tolerance is ±1–3 cm.

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Frequently Asked Questions

Q: Is this Arduino Nano R4 board fully compatible with the official Arduino IDE?

A: Yes, this Arduino Nano R4 Compatible Development Board uses the same Renesas RA4M1 microcontroller as the official UNO R4 family. It works seamlessly with the Arduino IDE and its rich ecosystem of libraries, requiring only minimal code adjustments when transitioning from other Nano or UNO R4 projects.

Q: What type of USB connector does this development board use for programming?

A: This board features a modern USB-C programming port, which is reversible and provides a reliable connection for uploading sketches and powering the board during development.

Q: Can I use this board directly on a custom PCB for production projects?

A: Absolutely. The board's castellated pins, compact 45 × 18 mm footprint, and single-sided assembly design make it ideal for soldering directly onto a custom PCB, enabling a smooth transition from prototype to a production-ready application.

Q: What sensors and peripherals can I connect via the Qwiic connector?

A: The on-board Qwiic connector supports a wide range of 3.3V I2C sensors, displays, and actuators — including Modulino nodes. An additional 5V I2C port (A4, A5) is also available for 5V peripherals, giving you maximum flexibility for expanding your project.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.