Water quality monitoring is essential to ensure safe drinking water and to protect public health. This project presents an IoT-based cloud water quality monitoring system that continuously measures important water parameters. The system uses the ESP32 as the main controller to collect and process data from multiple sensors. The system includes a pH sensor to detect acidity or alkalinity of water, and a TDS sensor to determine the total dissolved solids present in the water. All sensor data are read and processed by the ESP32 and displayed locally on an LCD display through an I2C communication interface. Using the built-in Wi-Fi capability of ESP32, the measured parameters are uploaded to the cloud platform ThingSpeak for real-time monitoring and data storage. This IoT-based monitoring system helps in early detection of water contamination and enables remote monitoring through the cloud. The proposed system is low-cost, efficient, and suitable for applications such as drinking water monitoring, industrial water quality checking, and environmental water analysis.          

The main objectives of the project are:

  To design and develop an IoT-based water quality monitoring system using the ESP32 for real-time data processing and communication.

  To measure important water quality parameters such as temperature, pH level and total dissolved solids (TDS) using sensors like pH sensor and TDS sensor.

  To display the real-time water parameter values on an LCD display through an I2C communication interface for local monitoring.

  To upload and store water quality data in the cloud using the IoT platform ThingSpeak for remote monitoring and analysis.

  To develop a low-cost, efficient, and continuous monitoring system that can be used in drinking water systems, industries, and environmental water monitoring applications.          

The major building blocks of this project are:  

• Adapter Power supply.
• ESP32 Microcontroller.
• PH sensor.
• TDS sensor.
• LCD display.

          Software’s used:  

• Arduino IDE for compiling and dumping code into Microcontroller.
• Thingspeak Cloud.
• Express SCH for Circuit design.

     

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