[TheOtherHobbes]

I had Alexa controlling the lights for a while, but I found talking requires much more cognitive effort than picking up a remote, finding the right button by touch, and pushing it.

I can literally do the latter three quarters asleep, but not so much the former.

It would be far more useful to have the process almost completely automated. Lights go on when someone enters a room and go off when everyone leaves, with optional manual override.

This turns out to be a hard(ish) problem that needs better sensors and/or some form of personal ID.