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HydroSense – Smart Water Management System

Second Year · Microcontroller and Integrated Circuit Based Application

HydroSense circuit diagram
Circuit Diagram — Electrical connections for the HydroSense smart water management system.
HydroSense block diagram
Block Diagram — System overview showing the main HydroSense components and data flow.
HydroSense prototype 1
Prototype 1 — HydroSense hardware prototype.
HydroSense prototype 2
Prototype 2 — HydroSense system prototype.

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About Project

HydroSense – Smart Water Management System

HydroSense is a microcontroller-based smart water management system developed for our college building to automate water level monitoring and improve water usage efficiency. The project was designed to eliminate manual tank inspection by providing real-time water level monitoring, automatic pump control, and GSM-based alert notifications.

The system uses an Arduino Nano as the central controller, which continuously receives water level data from an HC-SR04 Ultrasonic Sensor installed in the overhead water tank. Based on the measured distance, the controller calculates the water level percentage and displays it on a 16×2 I2C LCD for real-time monitoring. A Magnetic Float Sensor is integrated as an additional safety mechanism to detect critical water levels and improve system reliability.

To ensure efficient water management, the system automatically controls the water pump through a 5V Relay Module whenever the water level reaches predefined thresholds. It also supports both automatic and manual operation, allowing maintenance staff to switch between control modes when required.

For remote monitoring, a SIM900A GSM Module sends instant SMS notifications regarding important events such as tank full, low water level, and pump status. This reduces the need for manual supervision, helps prevent water overflow and dry running, and ensures a continuous water supply throughout the college building.

HydroSense demonstrates the practical implementation of Embedded Systems, IoT-based Automation, Sensor Integration, and GSM Communication, providing a cost-effective and reliable solution for intelligent water management in institutional infrastructure.

Key Highlights