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output voltage of a PIR sensor

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ericgibbs

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can anyone tell the output voltage of a pir sensor when motion detected???

hi,
Is your PIR sensor the 'basic' sensor no amplifier.?

You may know the PIR detector requires a Fresnel lens or reflector in order to generate the very low frequency AC signal in the order of mV's
 

Reloadron

Well-Known Member
Most Helpful Member
This is a data sheet for a PIR sensor. Your sensor should have a data sheet. Short of a part number there is no way for anyone here to guess what you have in front of you. Part number to data sheet is how it works. The output of the PIR in the link will be between 3.5 and 5 volts when it is active depending on the applied power depending on if it is set for active high or low. Assume active high.

Ron
 

KMoffett

Well-Known Member
Check here for datasheets on discrete PIR "sensors".
PIR Sensors

Ken
 
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