The NANO R4, developed by Futura Elettronica, is a compact and optimized version of the Arduino UNO R4 Minima board with the form factor of an Arduino NANO, based on the Reneas RA4M1 microcontroller.

This board is designed to offer greater flexibility: the castellated holes (or plated half-holes) along the PCB edges allow for direct soldering onto the host board without additional connectors, making the NANO R4 ideal for compact projects and high-density designs. Alternatively, for those who prefer a modular approach, the included headers can be soldered on, ensuring compatibility with previous versions of Arduino Nano.

An additional upgrade is the integrated Neopixel RGB LED, which can be used in various applications, such as displaying the board’s status through color changes. The NANO R4 also offers extra digital and analog I/O pins, normally unavailable, expanding the range of applications for complex projects and supporting protocols like I2C and SPI.

The NANO R4 thus represents a compact, advanced solution, maintaining the reliability of the Arduino UNO R4 Minima, but with enhanced features that make it even more suitable for customized and high-density component projects.

The NANO R4 board comes fully assembled, except for the headers, which can be soldered according to your design requirements.

• Designed and manufactured entirely by Futura Elettronica with usage instructions in english.
• Compact design: The Nano R4 board integrates the Renesas RA4M1 microcontroller, as in the UNO R4 MINIMA version, but in a form factor compatible with Arduino Nano.
• Castellated holes: Plated half-holes along the PCB edges allow direct connection to the host board without additional connectors, ideal for high-density designs.
• Modular compatibility: The provided headers can be soldered on, ensuring compatibility with previous Arduino Nano versions.
• Integrated Neopixel RGB LED: Offers customizable color status display, ideal for dynamic visual feedback.
• Additional I/O pins: Includes extra digital and analog pins compared to classic Nano boards, enhancing versatility for advanced applications.
• Support for I2C and SPI protocols: Additional pins allow connection and integration with external devices via standard protocols.

• Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4 with Floating Point Unit)
• Operating voltage: 5V
• Input voltage: 6-18V
• Memory: 256 kB Flash, 32 kB RAM
• DC current per I/O pin: 8mA
• Clock speed: 45MHz
• Programming port: USB-C
• Digital pins: 15
• PWM channels: 6
• ADC channels: 10
• DAC: 1 (12-bit)
• SPI: 1
• I2C: 1
• CAN: 1
• UART: 1
• Dedicated programming serial port (not shared with I/O pins)
• Dimensions:
  • Width: 18 mm
  • Length: 44 mm

• Library Compatibility with UNO R4
  Ensures smooth operation with libraries compatible with Arduino UNO R4.
• Board Integration in Arduino IDE
  To integrate the board, copy the "futura" folder into "C:\Users\AppData\Local\Arduino15\packages"
• FastLED Library (Neopixel management) Modified for Nano R4
  A customized version of the FastLED library is available for optimal Neopixel control on the Nano R4.
• COM Port Drivers for Windows 7 and 8
  Install the necessary drivers to create a virtual COM port, allowing compatibility with Windows 7 and 8