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Moisture Sensor

s ward

Dec 14, 2014
11
Joined
Dec 14, 2014
Messages
11
Hey all.

I recently purchased a moisture resistive sensor over Ebay similar to this:

http://www.ebay.co.uk/itm/Soil-Mois...0-/291193484418?ssPageName=ADME:X:AAQ:GB:1123

Now it only has the three pins Vs Ground and signal which it states is an analog output. Now having received it and tryed it out on an little GSM Modem I have through the analog input all I am getting is a digital value output from my modem of -10. This does not change be it dry or wet.

So im not fully sure whats the problem as I have no datasheet so hope one of you guys have had some experience with one or know where im going wrong.

thanks.
 

s ward

Dec 14, 2014
11
Joined
Dec 14, 2014
Messages
11
finally got an output out of it. was testing it in a cup of dry and then wet rice thinking that would enduce an output. but its only when I put my dry hand and then wet hand that im getting an output. Giving me a digital value of 8 dry and 64 wet
 
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