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PIR triggers every 15 minutes
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PIR triggers every 15 minutes

by jfthompson1 on Sat Oct 20, 2018 6:54 am

I'm using PIR with a Raspberry PI 3B+ to control a wireless switch using Node Red. It is working correctly, except I have noticed that the sensor triggers very close to every 15 minutes, all day and all night. I see this in the Node Red log for the sensor output. This is in addition to triggering when something passes in front of it. Any idea why this would be happening?

jfthompson1
 
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Please be positive and constructive with your questions and comments.