Unlike the NC and Every, the Nano 33 IoT does away with the At-mega line of microcontrollers. Instead, it implements a SAMD21G18A as the brains of the device. Both microcontrollers, however, are manufactured under the Microchip brand. This new design features a massive increase in Flash, SRAM, and clock speed. However, the device's specs do not list EEPROM, which is used for non-volatile storage. Digging a little further into the reveals that while EEPROM isn't technically available, users can obtain this functionality via reprogrammable Flash memory EEPROM emulation.

The big story with the Nano 33 IoT, however, isn't its considerable performance upgrades, but the fact that it is capable of wireless communication through 802.11b/g/n Wi-Fi and Bluetooth 4.2. As its name suggests, the Nano 33 IoT would facilitate a wide range of IoT applications. Another important consideration here is that unlike previous Nanos, the Nano 33 IoT operates at 3.3V. This voltage requirement means the device won't normally work as a drop-in replacement for most previous Nano projects. Consider how you plan to use the Nano 33 IoT before potentially releasing its "magic smoke".

Microcontroller: SAMD21G18A
Operating voltage: 3.3V
Flash: 256KB
SRAM: 32KB
EEPROM: Emulated
Clock: Up to 48MHz
ADC IN: 8
Digital I/O: 23
PWM OUT: 5
Size: 18 x 45mm
Sensors: None
Wireless: Wi-fi 802.11b/g/n & BT 4.2