I have multiple light sensors, but they're limited in their ability to tell a bright sunny day from a grey and dreary one. This morning it's foggy and grey and all of them report either 900 lux (the max reading) or 100% brightness. And a few just report "on."
Is anyone aware of an outdoor device that is more sensitive than this? I could go with weather conditions as a trigger, but there are so many ways it can be dark during the day that it's difficult to trap all the potential triggers.
(also, I looked for a more appropriate subforum to post this and could not find one.)