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cameronl : moisture   33

Connecting to Flower Power - GreenIQ
"connect up to 6 Parrot Flower Power wireless soil moisture sensors to your GreenIQ"
wireless  soil  moisture  sensor  irrigation  control 
july 2014 by cameronl
How to: soil moisture measurement? - Arduino Forum
"A more practical probe will use an AC measuring current, and use corrosion resistant probes.

The AC measurement technique can be easily done with an Arduino, but it will cost you a two digital pins.
Your 'probe' (the two nails) are in series with a resistor, forming a voltage divider. The center of the divider is connected to an analog input. The voltage divider is connected between two digital outputs.

The following code fragment gives an example..."
arduino  soil  moisture  sensor  ac  programming 
march 2014 by cameronl
Field capacity - Wikipedia, the free encyclopedia
"Field capacity is the amount of soil moisture or water content held in the soil after excess water has drained away..."
soil  moisture  sensor  monitor 
march 2014 by cameronl

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