Drivers for MS are on the Internet.
There is a project in which the author finalized the library and launched MQTT for sim5320. Here is the link: https://www.instructables.com/id/Remote-Control-and-Photo-Surveillance-Over-MQTT/ .
Only there Arduino M0 is used (for convenience of working with several interfaces of UART). And it even transfers the image from the camera through MQTT and 3G channel.
Posts made by ElectroNic
RE: 💬 3G/GPRS/GPS SIM5320(E/A) Arduino Shield