![]() The voltage on this voltmeter connected with the LC circuit gives the value against the variable resistor.This resistance of this variable resistor will help us detect the water. And we’ll attach the variable resistor to the TestPin of the sensor. We’ll connect the sensor’s analog output pin (S) with the LC circuit through a voltmeter. Connecting the LC circuit with the sensor is simple and straightforward.To do this, we’ll design a small LC circuit that will help simulate the water sensor.Now we simulate the sensor we’ve produced in the proteus workspace.Now click “OK” and close the “Edit Properties” panel. You’ve added the hex file successfully.This file you can find in the library folder of the proteus software. Now, you can add the sensor’s hex file by clicking the browse button as shown below.You can also get the “Edit Properties” panel by double-clicking on the sensor.Right-click on the water sensor and look for “Edit Properties” as shown in the figure below.Now, we’ll add the hex file of this sensor available in the library folder. I hope you’ve got a clear idea of how this sensor works and detects the water level.By measuring that voltage we can detect the water level. This variable resistance is directly related to the voltage appearing across the sensor.And when the sensor is partially immersed, it shows more resistance, less conductivity, thus indicating less height in correspondence with the resistance. ![]() When the sensor is fully immersed it shows the low resistance, thus indicating more height of the water. ![]()
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