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Overview
Nano R4 merges Arduino’s signature ease of use with the powerful Renesas RA4M1 microcontroller and a range of embedded features – the pinout includes CAN, DAC, VRTC and OpAmp! – enabling effortless scaling from prototyping on the UNO R4 to production-ready applications.
With pre-soldered headers, the Nano R4 is ready out of the box for breadboarding, connecting to Modulino nodes, and jumping into experimentation without additional assembly. It maintains the same pinout as other boards in the Nano family and features an on-board Qwiic connector for rapid sensor and peripheral expansion, as well as a programmable RGB LED for intuitive system feedback. Its single-sided component design makes it ideal for space-constrained products, ensuring a seamless transition from classroom or 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 students, designers, and developers a streamlined path to build compact, connected, and production-ready solutions.
Key benefits
Application examples to explore
| Board | Name | Arduino® Nano R4 with headers | |
| SKU | ABX00143 | ||
| 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 | ||
| Misc | DAC | A0 | |
| 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 | ||
Is my sketch for the Arduino UNO R4 Minima compatible with the Arduino Nano R4?
Yes, your sketch for the UNO R4 Minima is compatible with the Nano R4. However, you will need to adjust the sketch to align with the Nano R4's pinout.
Can I use hardware compatible with the Arduino Nano (A000005) with the Arduino Nano R4?
Yes, the Arduino Nano R4 was specifically designed to ensure compatibility with previous shields and compatible hardware developed for the Arduino Nano. The Nano R4 maintains the same pinout and electrical compatibility, allowing you to seamlessly use your existing shields and hardware with the new board. This makes it easy to upgrade to the Nano R4 without the need for significant changes or adaptations to your projects.
Can I use my sketch developed for the Arduino Nano (A000005) in the Nano R4?
Yes, if your sketch was developed using the Arduino API. In case you are using instructions only available for the AVR architecture, some changes need to be made to ensure compatibility.
Datasheet