MQTT based home automation system using ESP8266

By the virtue of blooming automation industry and wireless connectivity, all the devices within the home can be connected. This improves the comfort, energy efficiency, indoor security, cost savings of the home. Small and constrained embedded devices are used to remotely monitor the conditions within home and control the home appliances. In such case, power consumption and network bandwidth become a major concern. We need a low power device that transmits messages through a less verbose protocol. Owing to the ubiquitous availability of WiFi, all the appliances within home can be connected through a common gateway. This paper presents an overview of a light weight Message Queuing Telemetry Transport (MQTT) protocol. In the prototype, we attempt to implement MQTT on ESP8266, a WiFi based development board. Sensors and actuators are connected to ESP8266 and a Mosquitto based MQTT broker is established for remote monitoring and control.