The art of battery sipping

Thanks Sherman. Coincidentally, I actually have the PEC12R from another project - they are great, but as you said, same as a pot for specific setting. The pot will outperform for fine un-referenced settings (while consuming more power) I is looking like polling a pot has the best assortment of tradeoffs.

Thanks for the suggestion, and for thinking outside the box with the cool mouse-wheel idea. However, the emitter and sensor in that arrangement would result in untenable power consumption.

Thanks,

Dan