Overview
This is a handy, low power Raspberry Pi HAT which features multi communication functionalities: GSM, GPRS. It allows your Pi to easily make a telephone call, send messages, connect to wireless Internet, global position, transfer data, and so on.
Features
Raspberry Pi connectivity, compatible with Raspberry Pi 2B/3B/3B+/Zero/Zero W
Supports SMS, phone call, GPRS, DTMF, HTTP, FTP, MMS, email, etc.
Support GPS, COMPASS, Glonass, LBS base station positioning, omni-positioning
Supports data transferring through Bluetoth
Onboard USB TO UART converter CP2102 for UART debugging
6x LEDs for indicating the module working status
SIM card slot for 1.8V/3V SIM card
RTC with backup battery holder