I sent an email to SmartGrains to try and find out more about the sensors. I was looking for a way to know vehicle direction of movement even when a vehicle came into or out of driveway that did not have a presence tag. Motion detector logic/functions could not count or detect direction of movement (at least I think). So if I’m away on travel I could also see that there are a bunch of cars at my house. Oh no, kids are having a party!
The logic could also be set up to do a “first car in” or “last car out” kind of thing to do locks, lights and temp with or without presence tags.