AquaSense Pro: An IoT-Enabled Multi-Zone Water Quality Assessment and Reservoir Monitoring System Using ESP32, Capacitive Level Sensors, and Real-Time Cloud Analytics

AquaSense Pro is an advanced IoT-based water monitoring system designed to continuously assess water quality and reservoir levels in real time. The system integrates an ESP32 microcontroller with a TDS (Total Dissolved Solids) sensor, DS18B20 temperature sensor, four capacitive water level sensors, OLED display, and buzzer-based alert mechanism to provide comprehensive monitoring of water storage conditions.

The TDS sensor measures water purity, while the DS18B20 sensor provides temperature data for accurate water quality analysis through temperature compensation. Four capacitive level sensors divide the reservoir into multiple monitoring zones, enabling precise detection of water levels and storage conditions. The OLED display presents real-time system parameters locally, while the ESP32 transmits sensor data to a cloud-based dashboard for remote monitoring and analytics.

The system features intelligent alert generation through a buzzer and cloud notifications whenever abnormal conditions such as high TDS values, elevated temperature, or critical water levels are detected. Historical data logging and trend analysis allow users to monitor long-term water quality variations and reservoir usage patterns.

AquaSense Pro is suitable for residential water tanks, industrial water storage facilities, agricultural irrigation systems, drinking water monitoring applications, and smart city water management infrastructures. By combining edge IoT processing with real-time cloud analytics, the system enhances water safety, resource management, and operational efficiency.

Key Features

• Real-time TDS-based water quality monitoring

• Temperature compensation using DS18B20 sensor

• Four-zone capacitive water level monitoring

• ESP32-based IoT communication

• OLED local display interface

• Cloud dashboard for remote monitoring

• Historical data logging and trend visualization

• Intelligent buzzer alert system

• Abnormal condition detection and notifications

• Suitable for domestic, industrial, and agricultural applications

Applications

• Smart Water Tank Monitoring

• Drinking Water Quality Assessment

• Industrial Reservoir Management

• Agricultural Water Storage Monitoring

• Smart Building Water Systems

• IoT-Based Smart City Water Infrastructure

• Water Treatment Plant Monitoring

• Remote Water Resource Management System