MQTT: What is it, why would I use it, and how do I get started?
MQTT is an open source publish-subscribe communications protocol. It is lightweight and flexible, was designed for use by resource-constrained edge devices, and has become the most popular IoT-specific communications protocol. Together with the Sparkplug B specification, MQTT can form the backbone of industrial IoT infrastructure. For example, netDNA uses MQTT to provide automation and data communication for trailer-based pumping units in the oil and gas industry.
This collection of resources can help answer your questions about MQTT.
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