I'd like to eventually have lux sensors in every room to use for controlling lighting. For example, if I walk into the bedroom I have motion lighting setup to turn on the lights. If I could get the light level in the room, then I'd only turn them on if the light was insufficient. You can't do that by time as there's too much variance in the light level in different seasons and if it's overcast outside. Additionally the shade position on the windows in the room may also allow for different levels of light. While LED lighting takes very little power, it irks me having the lights come on when not necessary.
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