What is MQTT?
MQTT stands for MQ Telemetry Transport. It is a publish/subscribe, extremely
simple and lightweight messaging protocol, designed for constrained devices and
low-bandwidth, high-latency or unreliable networks. The design principles are
to minimise network bandwidth and device resource requirements whilst also
attempting to ensure reliability and some degree of assurance of delivery.
These principles also turn out to make the protocol ideal of the emerging
“machine-to-machine” (M2M) or “Internet of Things” world of connected devices,
and for mobile applications where bandwidth and battery power are at a premium.
The MQTT Standard
MQTT Version 3.1.1 - OASIS Standard - 29 October 2014:
Beginners Guide To The MQTT Protocol:
5 Things to Know About MQTT – The Protocol for Internet of Things:
Home Assistant // MQTT:
Glenn Lyons VK4PK
Ver:gnl20190505 - pre published v0.9