A LoRa enabled building automation architecture based on MQTT

The current and future trend in building and home automation sees an increasing pervasiveness of Internet of Things technologies, that allow to implement networks of low power sensors and actuators, and, at the same time, to enable advanced services and applications. In this paper we propose the use of a common protocol in the IoT domain, the MQTT, over a LoRa physical communication link, to jointly exploit the lightweight pub-sub paradigm offered by MQTT and the long range, low power wireless capabilities offered by LoRa, to deliver building automation services. Experiments show that the proposed architecture ensures commands transmission and actuation in less than 200 ms.