OpenIoT & ELC 2016

MQTT is an extremely simple and lightweight messaging protocol that fits the needs of IoT communication. It was designed specifically for constrained devices and low-bandwidth, high-latency or unreliable networks. With current technology, it is very easy and inexpensive for a person to develop a gadget that sends/receives data over the air, ala M2M, specially if they choose to use Embedded Linux, but when time comes to make the decision of what set of rules must be followed to exchange data in between these gadgets and a server, many end up developing a "protocol" from scratch. This is when MQTT comes into play because it covers all those aspects that one way or the other a developer will face during an ad-hoc implementation. MQTT has withstood the test of time, has great support from the community and there are several client libraries and brokers available to meet the needs of anyone.