I literally already went that way btw, It's still sitting here next to me... a 6 channel spdi digital pot, all code written and working, just no real resolution when it came to dimming. If you go back further in this thread you'll see the prototype board for and arduino sketch already made up
Realistically I should have been done this ages ago, I'm probably the worst person for everybody to be waiting on considering how busy I am with work and travel right now. Nobody else really stepped up to make it though.
I am planning on testing a few things to see if I can save myself some headaches on these boards and using the arduino to trigger the mosfet to let the dimmer circuit pass through (basically passing 2 dc circuits through one conductor). The actual electronics assembly isn't my specialty, control systems are, but I have enough knowledge in this at least to get myself in trouble
