The family is comprised of four different boards: – Arduino Nano Every – perfect for everyday projects. (Pre-order here with headers or here without headers) – Arduino Nano 33 IoT – small ...

This consists of different variations of the Nano, such as the Nano ESP32, Nano 33 BLE, and Nano 33 IoT. The Arduino Nano itself ... versus three), and no IOREF pin, which the Uno includes.