nothing with the old discussion, i would like to ask about pir sensor. i am doing a project where im using the sensor to detect motion and will automatically turn on the light and stay high unless there is no people in the room. and im using PIR sensor connected with arduino. the pir sensor seems to be LOW when the things in static condition. my problem is, how can we make its output always high? is it the problem with the coding or we can change its circuit or changing to another type of sensor ? thank you.