SIMPONI: Web-Integrated IoT Monitoring System for Indoor Hydroponics

Indoor hydroponics offers a promising solution for urban agriculture, enabling precise control over environmental conditions. However, without proper automation, growers still face challenges in monitoring key parameters that are crucial for plant health. To address these issues, this study presents SIMPONI, a web-integrated Internet of Things (IoT) platform designed for real-time monitoring in indoor hydroponic setups. The system uses an ESP32-S3 UNO microcontroller connected to various sensors to collect data on pH, TDS, water temperature, air temperature and humidity, light intensity, and water level. These sensor readings are transmitted to a Firebase cloud database and visualized through a web dashboard. The dashboard, built using Next.js and integrated with Firebase services, allows users to view historical trends, configure sensor thresholds, and manage device settings. The platform has been deployed in a controlled indoor hydroponic setup to validate its functionality. Results indicate consistent data transmission and responsive visualization. SIMPONI demonstrates a practical and extensible architecture for hydroponic monitoring and lays the groundwork for future enhancements such as automation and data-driven optimization.