Updated: Jul 2, 2021
Level Monitoring and Control with dry Pump run protection using Ultrasonic Sensor and Android Application via bluetooth HC-05.
One of the major problems faced by most of the countries is the issue of water scarcity in the world. The scarcity is mainly due to the wastage of the water. There is a need to control the water wastage to save the environment and water resources. Water level monitoring system is one of the techniques to address the control of water wastage. It observes the level of water and provides the information to the registered users through wireless. In view of this, Bluetooth module based Water Level Monitoring system is an innovative idea that will inform the users about the level of liquid and will prevent it from overflowing. The water level monitoring system is a automatic process to detect and indicate the level of water in the reservoirs, overhead tank or any other storage containers, etc. All the householders are storing the water in overhead tanks by using the motor pumps. When the water is stored in the tank, no one can identify the level of water and also, no one can know when the water tank will be filled. So, there is an overflow of water in the tank, which results wastage of energy and water. To resolve this type of problems by using implementation of water level monitors and control systems using wireless technology which will transmit the information to the smart phone and indicate the level of water in the overhead tanks. And also to design a contactless water level indicator and controller using ultrasonic sensor with DRY PUMP RUN PROTECTION.
For Programmed ardunio Uno & Price: https://www.dofbot.com/product-page/water-level-monitoring-and-control-using-bluetooth-android-app
HC-SR04 ultrasonic sensor
The HC-SR04 ultrasonic module is a module that can provide non-contact measurement within the range of 2cm to 400cm with ranging accuracy that can reach 3mm. It works on the principle of echolocation.
The ultrasonic sensor as a trigger and an echo pin. The arduino provides a high signal of 10microseconds to this pin. After the HC-SR04 is triggered, it sends out eight 40Khz sound waves to the surface of the water. On getting to the surface of the water, the wave is echoed back to the sensor and the arduino reads the echo pin to determine time spent between triggering and receiving of the echo. Since we know that the speed of sound is around 340m/s then we can calculate the distance using;
Distance = (time/2)*speed of sound