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Member #504489

Member Since: January 2, 2014

Country: United States

  • I’m trying to make a capacitive flood detector and I’ve run into a problem. I’m applying power to the sensor, waiting 100ms then reading the OUT pin; the process repeats every 5 minutes. Here is the issue I’m experiencing: if my finger (or anything else with high relative permittivity) is on the sensor pad before I power on the sensor, the OUT pin never changes to high; I’ve confirmed the behavior with my oscilloscope. If I power on the sensor, then touch the pad it works fine. Any idea what’s going on?

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