Arduino Nano R4 with Headers | 48MHz Cortex-M4 & Qwiic I2C

Next-Generation 32-Bit Processing Power

The Arduino Nano R4 represents a massive leap in computational performance over its 8-bit predecessors by integrating the 32-bit Renesas RA4M1 microcontroller. This powerful Arm® Cortex®-M4 processor runs at 48 MHz and features a floating-point unit (FPU), making it ideal for complex digital signal processing and edge computing tasks. With 256 kB of Flash memory and 32 kB of SRAM—offering 8x and 16x the capacity of the classic Nano respectively—you will never have to worry about running out of space for your advanced code libraries and variables.

Seamless Qwiic & Modulino Integration

This development board completely streamlines sensor integration by featuring an onboard Qwiic I2C connector. You no longer need to solder complex wiring harnesses or use bulky breadboards to connect external I2C modules; simply plug in any Qwiic-compatible sensor or Arduino Modulino node for instant, reliable communication. This plug-and-play architecture drastically reduces hardware troubleshooting time, allowing makers and engineers to focus entirely on software development and rapid prototyping.

5V Logic with Advanced Hardware Peripherals

The Nano R4 operates at a standard 5V logic level, ensuring 100% hardware compatibility with your existing shields, sensors, and circuits originally designed for older Nano revisions. Beyond backward compatibility, it introduces advanced peripherals including a 12-bit Digital-to-Analog Converter (DAC) for true analog audio output, a built-in Operational Amplifier (OPAMP), and a CAN bus controller for automotive and industrial networking. It also features a Real-Time Clock (RTC) with a dedicated battery backup pin (VBATT) to keep accurate time even when the main power is disconnected.

Pro Tip from Our Technicians

Always remember that while the main Arduino Nano R4 board operates at 5V logic, the onboard Qwiic I2C connector strictly outputs 3.3V to comply with the Qwiic standard. Our Sham Shui Po DIY specialists strongly advise against connecting 5V sensors directly to the Qwiic port, as this mismatch can damage the components; however, the board's internal logic translator safely handles the communication between the 3.3V Qwiic bus and the 5V microcontroller.

• Microcontroller: Renesas R7FA4M1AB3CFM#HA0 (32-bit Arm® Cortex®-M4)
• Clock Frequency: 48 MHz
• Memory: 256 kB Flash / 32 kB SRAM / 8 kB EEPROM
• Operating Voltage: 5V (Board Logic) / 3.3V (Qwiic Connector)
• Input Voltage (VIN): 6V - 21V DC
• Digital I/O Pins: 14 (6 provide PWM output)
• Analog Input Pins: 8 (14-bit ADC)
• Analog Output Pin: 1 (12-bit DAC)
• Communication Interfaces: 1x UART, 2x I2C (1x Breakout, 1x Qwiic), 1x SPI, 1x CAN
• Dimensions: 18 mm x 45 mm

• Local delivery within Hong Kong and in-store pickup.​
• Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
• Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
• Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
• In-store pickup details (location and time) will be confirmed by email or phone message.​
• Delivery times are estimates and may be affected by weather or unforeseen circumstances.​