When designing reliable systems using MQTT (Message Queuing Telemetry Transport), it’s important to know whether your devices are online. Birth and Death messages are special messages that help communicate the state of a device to other clients in a MQTT network.
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Design A Network of 100s of MQTT Parking lot Sensors
Task -Design an MQTT topic and security structure with Mosquitto as the MQTT broker for a network of 100s of Parking lot sensors. Overview In this design example we take the case of a network of parking sensors. Sensors will be sending an occupied/unoccupied state message as well as supplementary information like battery level,signal level IP address etc.
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