I want to know what is the frequency and amplitude of PIR sensor output signal , may somebody know ?
we are modeling an amplification of PIR output signal via Altium simulation software , it consists a LM324 (as OpAmp and comparator ).
but we don't have any information about PIR output signal..
this is what we try to model and increase its functionality : :wink:
What frequency:
If you wave your hand twice a second in front of the PIR sensor, I expect an output frequency of 2 Hz.
3 times a second --> 3Hz
and so on...
If you see any changing digital signal without a moving object, then your setup might be wrong.