Arduino Nano R4 is an ideal choice for developers who want to move seamlessly from prototyping to production. It is based on the success of the UNO R4 Minima model and uses the same powerful RA4M1 microcontroller in a compact Nano form factor.

Features

• Modern performance: 32-bit ARM® Cortex®-M4 @ 48 MHz – ideal for compute-intensive applications
• More memory: 256 kB Flash, 32 kB SRAM and 8 kB EEPROM for larger programs and data
• Versatile interfaces: I²C (2x), SPI, UART, CAN (external), 8x ADC (14-bit), 1x DAC (12-bit)
• Built-in RTC with battery backup: perfect for time-based applications, including power outages
• Compatible with 5 V accessories: backward compatible with older Nano-Shield devices and modules
• Compact and rugged: only 45 × 18 mm, wide temperature range (-40 °C – +85 °C)
• Programmable RGB LED: the built-in RGB LED can be programmed to show different operating modes, making debugging and system monitoring easier

Technical specifications

• Microcontroller: Renesas RA4M1 (R7FA4M1AB3CFM)
• Clock speed: 48 MHz
• Memory: 256 kB Flash / 32 kB SRAM / 8 kB EEPROM
• I/O pins: 21x digital, 8x analog (14-bit), 6x PWM
• Communications: UART, SPI, I²C (Qwiic + standard), CAN (external)
• Connections: USB-C, Qwiic-I²C, 5 V & 3,3 V rails
• Operating voltage: 5 V
• Power supply: USB-C or VIN (6–21 V).
• Dimensions: 45 × 18 mm

Delivery

• 1× Arduino® Nano R4 board
• Header pins: Not soldered
• Quick start guide