Hi, I'm trying to use a PIR sensor following the below blog http://bildr.org/2011/06/pir_arduino/ The problem is that is detecting always a movement. I have tried to attach a multimeter between the ground and the Output (which is the one that is wired to the Arduino input pin for reading) but the…

PIR and arduino

michinyon May 18, 2014, 6:47am 3

This seems to be a useless device. I suggest you go and read the 69 comments about it at that other forum post you linked to.

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