The main aim of this project is to design an IoT-based water level monitoring and control system using a ESP32 module. The system uses IoT technology to monitor and control the water level in a tank through the Blynk application. An Android smartphone is used for remotely monitoring the water level, allowing users to check the tank status from anywhere through the internet. An ultrasonic sensor is used to measure the water level inside the tank. The ESP32 module, which is based on the ESP8266 Wi-Fi microcontroller, acts as the main controlling unit of the entire system. It is an open-source development platform that supports Wi-Fi-based embedded applications and can be programmed using the Arduino IDE. In this project, the ultrasonic sensor and relay module are interfaced with the ESP32. The ESP32 continuously reads the water level data from the ultrasonic sensor and uploads the information to the Blynk application through Wi-Fi. When the water level reaches the LOW level, the ESP32 automatically turns ON the water pump through the relay. When the water level reaches the HIGH level, the ESP32 automatically turns OFF the water pump through the relay. The relay acts as an electronic switch to control the pump operation. An AC bulb is used as an indicator to demonstrate the ON/OFF operation of the water pump. Thus, the proposed system provides automatic water level control, remote monitoring, and helps prevent water overflow and unnecessary water wastage.            

 The objectives of the project include:

  To monitor the water level in the tank using an ultrasonic sensor.

  To display the water level and Motor Status on the Blynk application.

  To control the water pump automatically using a relay.

  To turn ON the pump when the water level is LOW.

  To turn OFF the pump when the water level is HIGH.

  To prevent water overflow and reduce water wastage.

  To provide remote water level monitoring through an Android smartphone.          

The main building blocks of the project are:

• Regulated power supply.
• ESP32 Microcontroller.
• Relay Bord.
• AC Bulb.
• Ultrasonic sensor.

         

Software’s used:

1. Arduino IDE studio compiler to write the program.
2.  Express SCH for Circuit design.
3. Blynk APP.

         

Regulated Power Supply:    

                           

       

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