It should work somehow, I have two of them digged, getting something between 
0.30 (dry) and 1.29 (wet) in the current field.

BUT: I had many problem getting them to work and still have to reset them every 
few weeks as they "hang up" somehow! 
The order of connecting them seemed to be relevant, connecting GND (both 1w and 
supply consurrently) at last worked for me..
And there was a big issue when using any two sensors digged with GND and 
flapping values, I had to add an isolation-transformer between board and 
gypsum-sensor, see here:
http://www.cocoontech.com/forums/index.php?showtopic=12330
You should calibrate them yourself *after* adding the transformer (if needed)..


Michael

> -----Original Message-----
> From: Mads Hjorth [mailto:[email protected]] 
> Sent: Friday, October 23, 2009 12:41 PM
> To: [email protected]
> Subject: [Owfs-developers] Reading the moisture meter hobby 
> boards with soilsensor
> 
> Hi all,
> 
> I am trying to get some decent values from a moisture meter 
> from hobby  
> boards (familiy code 30). From what I understand the sensor is a  
> variable resistor and the value of the current field should 
> depend on  
> the resistance.
> 
> No matter what I do to the sensor e.g. drop it in a cup of 
> water I get  
> the exact same value (-0.6375).
> 
> Do I need to set any of the cryptic settings to read the 
> current value  
> correct?
> 
> Mads
> 
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