Yeah, this is what I was thinking, though I didn’t consider that the sensor facing outwards might get a different lux value if blinds are up or down with the same cloud state. I thought they’d literally be directional, having not had one before. Thanks!

Yeah, I’ve played around with basing it on sunrise/sunset and a local weather api, but it often says it’s cloudy outside when it’s not, and vice versa. Or there’s various types of cloud; the API can’t differentiate.

I considered this, but I want it based on outside brightness, as it affects glare in the room. I’d like the blind to be open if at all possible, i.e. when it’s duller outside.