Abstract
The Internet of things (IoT) is the inter-networking of physical devices, vehicles (also referred to as connected devices and smart devices), buildings, and other itemsembedded with electronics, software, sensors, actuators, and network connectivity that enable these objects to collect and exchange data. IoT allows objects to be controlled and gather information remotely across the already established network.In this paper, IoT latencies based on MQTT protocol are studied. Latency test results on Linux-based platform - Raspberry Pi using programming language C and Python are compared. Latency test results based on bare-metal embedded system are also described. MQTT local broker and remote broker are compared for all the testing results. These research results can help us to get a better understanding of the IoT performance for message publish and can be used as a metrics during IoT implementations.
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