Look what came in the mail today:

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And here are the poor neglected plants

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And found a few good links on the various types of soil moisture sensors I though I would share.

http://test.gardenology.org/wiki/Measure_Soil_Moisture#Soil_Electrolyte_Meters

and

http://micah.waldste.in/blog/2010/09/grow_with_arduino_far_too_much_on_moisture_sensing/

 

Next up need to experiment with some soil and probes.