Suppose you are developing an application that is going to monitor the boundary fence of a wild life sanctuary in Africa or you are developing a pollution monitoring system that will collect data on how much pollution is created by traffic during rush hours in the Netherlands. Both systems have one thing in common, in both systems we are dealing with a lot of sensors. These can be motion sensors or environmental sensors to detect the air quality. When working with sensors or IoT systems, we must handle communication very efficiently. This is because usually we have very limited resources in terms of storage, power and processing. This is where MQTT comes in.
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