My question is this. Can you connect a 10v regulated power supply to the arduino VCC pin, and then connect the arduino ground pin through a voltage divider between the positive and negative of the power supply? Essentially making a circuit that is +5v to -5v with arduino common ground at 0v.
Theoretically is seems this should work, but probably highly inefficient. Is this type of circuit possible, and what would be the best approach?
My goal for a circuit like this would be to use the logic level output of the arduino to engage a mosfet that requires a 10v voltage potential to fully saturate.