Arduino Nano R4 - Compact powerhouse with 32-bit power The Arduino Nano R4 takes the classic Nano shape into the next generation: Equipped with a powerful 32-bit ARM Cortex-M4 processor, modern USB-C interface and extended interfaces such as DAC, OPAMP and RTC, the Nano R4 is perfect for demanding projects in the fields of prototyping, edge computing, signal processing and IoT. Thanks to the integrated Qwiic I²C connection, the Nano R4 is also directly compatible with the Arduino Modulino nodes, making it particularly easy to add sensors, actuators and modules - no soldering required! Main features