Description: This YouTube video provides a comprehensive guide to using the LiLygo SIM7600 module with MQTT (MQ Telemetry Transport) protocol over TLS (Transport Layer Security) on port 883. We walk you through the process of setting up the SIM7600 module and establishing a secure connection with an MQTT broker. Whether you're a beginner or an experienced developer, this tutorial will equip you with the knowledge to integrate LiLygo SIM7600 with MQTT in a secure and reliable manner. We will use AT commands to setup everything code: