[keville]

This ought to make for inexpensive home automation sensors that do much better occupancy detection for rooms than pIR sensors, which stall out if you're sitting and don't move enough to trigger "motion" but still want lights on in the room.

[quickthrowman]

There are ‘dual-tech’ occ sensors that use IR and ultrasonic sensors to avoid the issue that you mentioned.

[t0mas88]

That would be quite useful for a home office. I now only have hallways / bathrooms set for automatic light because you're always moving there.

Do you have a link?