dumb occupancy sensors are incredibly unreliable. Smart code based on MAC addresses seen on my wifi, timer based, power drawn by the wireless phone charger nex

dumb occupancy sensors are incredibly unreliable. Smart code based on MAC addresses seen on my wifi, timer based, power drawn by the wireless phone charger next to my bed, door positions and other things added together is not difficult to code or understand, but very reliable. If I have all that on the input side may as well have it on the output side. Some sensor work is utterly trivial. Door position plus sun elevation based on NTP accurate clock equals lights on / off in the laundry room. Position of garage door equals garage extra lights on/off kind like a giant fridge door and its fridge light. The complete set of presence code for my home office is a little more elaborate.