Ravi <echip.india <at> gmail.com> writes:

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> I have developed a soil moisture sensor (Photo attached).
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> Super imposed on the setup is the actual sensor photo.
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> The display shows the % of moisture present in the tumbler. The
> oscilloscope shows the % in terms of pulse width (mS).
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> So far I have not encountered any issues. From the past 4 days the % of
> moisture has been decreasing everyday.
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> Further tests and validations are in progress.
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> Cheers
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> Ravi
Can you share a schematic or a principle how the sensor works?  Usual
problem with long-term use of water/moisture sensors, as well as anything
that is in contact with water is corrosion and build up of "gunk", which is
in most cases a biofilm of bacteria.  Is you sensor susceptible to that?=20

Thanks,

Sergey Dryga
http://beaglerobotics.com


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