MQ Telemetry Transport (MQTT)


  1. Overview


MQTT is a lightweight publish/subsribe communications protocol that uses TCP/IP. It is designed for remote sensors to communicate with controlling devices. The specification is under a royalty-free licence. Interesting features of the protocol include the one-to-many messaging service (publish/subscribe), the Last Will/Testament feature, and the three qualities of service. You can read more about it here.