MQTT (Message Queuing Telemetry Transport) is a publish-subscribe based “lightweight” messaging protocol for IoT (Internet of Things) and M2M (Machine-to-Machine) communication that works on top of the TCP/IP protocol. It is designed to be efficient, low overhead, and minimizes network bandwidth usage, making it ideal for IoT devices with limited resources. The publish-subscribe model enables decoupled communication between clients, where clients can publish messages to topics, and other clients can subscribe to these topics to receive messages.
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