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PCB Design > Learn PCB Design > Learning Tip - Project #1 Continuous Water Level Sensor
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Learning Tip - Project #1 Continuous Water Level Sensor

Shyam Sunder Tiwari
20/09/2016 0 0

You can build a Continuous Water Level Sensor. You will need the followings

 

1. Stainless steel capacitive water level sensing probe

2. 555 Oscillator circuit

3. 89S52 microcontroller board with LCD display or LED display

4. 5V Dc power supply

 

Method: 

Use 555 oscillator to generate frequency using capacitive water level sensor

Count the frequency generated by the 555 oscillator using microcontroller board

Display the water level after relating frequency with water level.

 

Tips:

Dielectric constant of water is 80 times more than that of air, hence capacitance increases with increating water level.

 

 

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