MQTT, the open-source messaging protocol for IoT

What this post added

This post introduces the MQTT protocol, detailing its publish-subscribe model, the roles of publishers, subscribers, and brokers, and its evolution from a niche protocol for the oil and gas industry to the leading messaging protocol for IoT. It highlights the open-source contributions like Eclipse Mosquitto and Eclipse Paho, and its standardization as OASIS and ISO. The post also discusses the upcoming MQTT v5, emphasizing its adherence to founding principles.