SparkFun Soil Moisture Sensor (SEN-13322)

This is a placeholder topic for “SparkFun Soil Moisture Sensor” comments.

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straight forward to use. The two large exposed pads function as probes for the sensor, together acting as a variable resistor. The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.

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I’m just wondering what the idle and maximum current draws for this item are?



Hi Arielle,

I’m not sure! The manufacturer does not supply that information. I suspect it would be very little power though!

Yes I doubt it would be much power. Thanks!

Hi Arielle,

I had a look and based on the Sparkfun schematic and the notes about the DFRsensor I would say current draw is around 35mA.