water detection through capacitive sensor

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hi everybody,

i'm new forum , couldn't find presentation section, apologize in advance if i'm breaking rule :)
my idea sense water using capacitive touch button, using cap1188 interfacing arduino: i'm afraid such sensor couldn't sensitive enough detect little quantities of water (like drop or two), since it's made detect variation of capacitance due human body (very higher).

did has experimented in way? please give me hint?

thank guys :)

hi, welcome forum.

a drop or 2 ? nothing compared human body.

there capacitive touch library use arduino : http://playground.arduino.cc/main/capacitivesensor
the cap1188 can adjust sensitivity , better, think drop or 2 not possible detect.

it possible use capacitive sensor measure moisture of soil. not single wire in ground, probe-like circuit board using 2 'plates' , capacitance measured between plates. varies when soil around contains more water.
http://wemakethings.net/chirp/


Arduino Forum > Using Arduino > Sensors > water detection through capacitive sensor


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