I understand that if you leave a room and move into a new room where a sensor is present, then you are determined to be in the new room and no longer in the old room.
But what happens when you leave the house? If appears that not"exit" charm is invoked and so it still shows you present in that room.
Can't the exit charm be triggered after a fixed amount of time where no phone is detected? If not, I'd like to suggest that change