What is MQTT?
MQTT is a lightweight publish/subscribe messaging protocol widely used in IoT systems. Devices connect to an MQTT broker and exchange messages through named topics instead of opening a dedicated connection to every other component.
Why does AirNgin use MQTT?
MQTT is suitable for connected products because it is lightweight, supports long-lived connections, works well on constrained networks, and provides a clear publish/subscribe model.
AirNgin uses MQTT as the cloud messaging layer for supported device integrations. Direct Device and Gateway topic contracts are intentionally separate.
How does it work?
A client connects to the broker with its issued credentials, subscribes to the topics it needs, and publishes messages to the topics it is authorized to use. The broker routes each published message to the matching subscribers.
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