Meteorological sensor network based on ESP8266

In this paper, the design and realization of a network of weather sensors is presented, which aims at measuring temperature, humidity and air quality by using DHT11 and MQ135 sensors. The instrumentation of these sensors is accomplished by an ESP8266, which is a microcontroller with Wi-Fi module. We use it in the network as sensor node. The collected data are transferred to Raspberry Pi 3. This one is used to act as web server. It receives the measured data from the sensor network via Wi-Fi, and stores them on its database. Our sensor network could be used in application fields where meteorological data are needed, such as environmental applications as well as the protection against natural disasters and water flow managed by agricultural systems.