International Journal of Scientific Research and Engineering Development

Continuous monitoring of water storage tanks is important for reducing overflow, preventing inadequate water supply, and improving the management of pumping systems. This study presents the design and implementation of an Internet of Things (IoT)-based water level monitoring system using an ESP32 microcontroller, two float-switch sensors, a DC pump interface, and the Blynk Cloud platform. The sensing unit detects minimum and maximum water-level conditions, while the ESP32 processes the sensor states and transmits the monitored status through Wi-Fi for remote observation. The prototype incorporates a solar/battery power arrangement and regulated voltage stages for the electronic components. Functional and simulated performance tests were conducted for water-level detection, IoT communication, system stability, and response time. The reported test sequence produced 100% detection across the three monitored level conditions, 98% overall IoT communication reliability, and average pump ON and OFF response times of 0.79 s and 0.76 s, respectively. The results indicate that the proposed architecture provides a compact approach to remote water-level monitoring; however, the communication performance remains dependent on the availability and quality of the Wi-Fi/internet connection.

Halima Sulaiman Saleh, Imrana Abubakar, Hamza Ahmad Abubakar, Rofihat Ibrahim, Hassan Muhammad, Andrew Ezra Garba, "Design and Implementation of an IoT-Based Water Level Monitoring System" International Journal of Scientific Research and Engineering Development, V9(5): Page(258-263) September - October 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.