Great script!! I added the feature to have the dimming device returning to a certain (default) level, after the timer expires. This is helpful in certain dark area's (halls, etc.) where you may want this default level during periods as defined in the timetable. --[[ dzvents timerule based settings ...

I can confirm: running over 1 month now with new plug-in / firmware and no hick-ups whatsoever. Seems to be really stable now. Neat solution.