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Rain Sensor (PIC Usage)

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grkmr

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Hi all,

I'm responsible to build a rain sensor with the help of PIC programming. However, I don't know in which stage I should use it.
Project is simply to detect water and run an engine using the data that comes from the sensor. I plan such a circuit basically:

Water ---> Sensor ---> PIC ---> (Amplifier if needed) ---> Engine

The main problem is that I don't know what kind of code should I use in PIC, what is the purpose of PIC? Will it work as an DAC(Digital to analog circuit)?

Thanks!
 

Hi,

What is the type of sensor you need to use ?
If there is no logic to manipulate, there is no need to use PIC. You can directly connect sensor to amplifier stage.
Like "If it is raining" then "Start engine"; if this only you need to do neglect PIC.

Thank you,
 

thank you so much for the answers
 

Actually L4620 is only fixed level sensor. You need to use QT300 from Atmel or even some 3 electrode slider to measure precisely the level of the water.
 

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