I fixed the pir sensor on the top of servo motor.while the servo motor's rotation the pir was also rotated by servo motor's motion.but the problem I had founded that pir sensor had always indicated motion of human which I realized through a buzzer. When I take of the sensor from servo motor it had worked as well.
So my question is that can we use pir sensor while it's moving?
Electronic – arduino – Can we use pir sensor while it’s moving
arduinoarduino unocomponentsmicrocontroller
Best Answer
A PIR sensor on its own is effectively just two Infrared sensors next to each other:
https://www.makerguides.com/hc-sr501-arduino-tutorial/
I assume you are using one with a fresnel lens on it, and a driver/detection circuit already built in. If so, it will be basically impossible to use it while moving, since it relies on detecting a change in temperature between two areas, and it will be detecting this constantly. They are meant for detecting motion, and you are moving all the time.
Even if you created your own driver, I imagine it would still be pretty difficult to do it (maybe impossible).