I was thinking of using an arduino board with a servo motor hooked up to it, that controls a circular dimmer switch. I was hoping for help on for how to program the arduino board to create a loop (dark to light to dark, etc.)
Thanks for letting me know that fluorescents can't be dimmed. I will check your suggestions. I'm trying to work with easily available, easily installed and inexpensive materials. There is a lutron programable graphic eye that when used in conjunction with a 2 button wall station could do the trick, but those two parts alone run around $800 and then there are still the bulbs and fixtures.
Any further thoughts?