M5Stack Unit NB-IoT Wireless Communication Module

M5Stack Unit NB-IoT is a wireless communication module that is applicable to the global range Cat-NB frequency band. This module features a built-in SIM7020G communication module and an integrated SMA external antenna interface that helps improve communication quality and signal stability. Other features include nano SIM card type, UART serial communication, and AT command control. The unit NB-IoT module is ideal for smart meters, remote monitoring, and shared bicycles.