I'm trying to publish some data to Google Cloud using the SIM800 module together with ESP32. Google IoT Core provides its documentation on connecting MQTT clients here. It says:
Associate the MQTT client with MQTT server certificates.
However, in the SIM800 manufacturer's documentation on AT commands usage (here), there is nothing about associating the tls certificate. Given information concern making simple connections providing only the host, username and the password.
How can I make a connection that would take the certificate into account?
