Arduino Nano R4

The Arduino Nano R4 pairs the Renesas RA4M1 microcontroller with a Nano form factor, featuring USB-C, Qwiic connector, CAN support, RTC, DAC, OpAmp, and HID capabilities.

Nano R4 merges Arduino’s signature ease of use with the powerful Renesas RA4M1 microcontroller, enabling effortless scaling from prototyping on the UNO R4 to production-ready applications. Compact and versatile, the Nano R4 maintains the same pinout as other boards in the Nano family and features castellated pins for easy hardware integration, an on-board Qwiic connector for rapid sensor and peripheral expansion, and a programmable RGB LED for intuitive system feedback. Its single-sided component design makes it ideal for space-constrained products and SMD soldering on custom carrier boards, ensuring a seamless transition from lab testing to real-world deployment. Thanks to its compatibility with familiar Arduino tools and libraries (including those for the Arduino UNO R4 Minima), the Nano R4 offers developers and designers a streamlined path to build compact, connected solutions. Available with loose, unsoldered headers, or with headers pre-soldered - please select an option before adding to cart. Features

* Renesas RA4M1 microcontroller with 32-bit Arm® Cortex®-M4 core (48 MHz)

* USB-C® connector

* Qwiic I²C connector (3.3V logic)

* CAN bus support (requires external transceiver)

* 12-bit DAC

* Built-in operational amplifier (OPAMP)

* Real-time clock (RTC)

* 5V operating voltage

* Mouse/keyboard HID emulation

* Compatible with standard Arduino Nano form factor

Specifications

Microcontroller Renesas RA4M1 (Arm® Cortex®-M4)

USB USB-C® programming port

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

Analog input pins: 8

DAC: 1

PWM pins: 6

External interrupts: 2, 3

DAC: A0

Misc OpAmp: A1, A2, A3

VRTC: J5

Communication UART: 1

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

SPI: 1

CAN: 1

Power Circuit operating voltage: +5 VDC

Input voltage (VIN): +6–21 VDC

DC current per I/O pin: 8 mA

Clock speed Main core: 48 MHz

Memory (RA4M1) Flash: 256 kB

RAM: 32 kB

EEPROM: 8 kB

Dimensions Width: 18 mm

Length: 45 mm

Resources

* Product documentation

* Pinout

* Datasheet

* Schematics

* CAD Files

* STEP Files

* Product number:

* With loose headers: ABX00142

* With pre-soldered headers: ABX00143

Package Contents Either (select option before adding to cart):

* 1x Arduino Nano R4 (no headers)

* 2x Header strips

or

* 1x Arduino Nano R4 (with pre-soldered headers)