Design & Development of a Wireless Multi-Zone Temperature & Humidity Measurement System with Real-Time Data Monitoring on Mobile Device

The objective of the study is to design, develop, install and perform tests for a highly versatile, microcontroller based multi-zone temperature and humidity measurement systems connected wirelessly with each other. There are client nodes acting as slaves and there is a server node acting as their master. The master is responsible for collection of the overall data of its own as well as from all these slave nodes and further provide it to the user remotely in real-time on his/ her cellular phone. All the units will be wireless connected and made to establish communication with each other using standard Wi-Fi protocol and for this purpose Wi-Fi modules to be deployed with each unit separately. In this system different slave/client nodes will collect their individual data related to the temperature and humidity using sensors. This data will be received by a master/server node which further transfers this data to a specific android app in the user’s cellular phone. User can get the updated information of multi-zones using the refresh button provided in android app, each time when required. The hardware prototype will validate the work. Keywords--Temperature; Humidity; Measurement; Microcontroller; DHT11; Wi-Fi; Wireless