The Arduino Nano and Uno are equipped with very similar processors (the chip that essentially serves as the brain of the board). The Nano features an ATmega328, while the Uno sports an ATmega328P.

The power of Espressif’s ESP32-S3 meets Arduino’s unmatched customer experience, documentation and community — all in the compact form factor of the Nano. Provides support for both ...

Features and Benefits The Arduino Nano ESP32 presents a unique blend of features that make it the ideal microcontroller for an array of IoT applications, from home automation and gaming to ...

The Nano is also a great choice when your code is pretty large. Since it has more usable flash memory than the Micro (30 KB vs 28 KB), it's better at handling long sketches.