#MQTT, or Message Queuing Telemetry Transport, is a messaging protocol. MQTT has two primary entities: the broker and the clients. The broker acts as a central hub directing communication between clients. Clients can be devices or applications that send or receive messages. MQTT operates on a publish/subscribe model. In the publish/subscribe model, clients can publish messages to specific topics, and other clients interested in those topics subscribe to receive those messages. Each MQTT message