Real-time IoT-enabled Monitoring and WebGIS-based Visualization of Soil Moisture, Temperature, and Humidity

The design and deployment of a real-time environmental monitoring system that integrates WebGIS for data visualization with Internet of Things (IoT) technologies, applied to the study area of Bryant Nagar in Thoothukudi district, Tamil Nadu, is described in this paper. The hardware setup is established using the NodeMCU ESP8266 microcontroller to interact with sensors measuring temperature, humidity, and soil moisture content. The collected data is wirelessly transmitted at regular intervals and stored in a MySQL database. Environmental parameters can be interacted with and viewed on a map through a dynamic web interface developed using HTML, CSS, JavaScript, and Leaflet. A seamless user experience and fast data retrieval are ensured by the combination of PHP and AJAX. Effective decision-making is facilitated by the system through interactive and intuitive interfaces that support environmental data monitoring and geographic visualization.