I have this sensor from a security alarm... i have open it and get the little pir sensor (2030B).
I have readed the pdf about it and i know what are the connectors in it
Question... the pir sensor will work stand alone? i have connected the sensor to arduino 2009 and use some code that shows the sensor response...but i think that is not working because even disconnectiong the sensor the values are the same.
What is needed to the sensor to work? can i make it with my breadboard?
have you tried connecting it to a multimeter to verify the output is within spec? Also from my understanding of some of these, they are very sensetive and can remain in an active(high)state even when they are removed from conditions that triggered them.