yes - I use SGP with Moonlite focusers/steppers and the Sharpsky controller. The key for SGP is that the stepper controller is ascom compliant. The catch with the ardunio options is whether the driver is ascom compliant, hence my recommendation to consider the sharpsky option. Dave (the developer of the sharpsky focuser) is an IIS member:
http://www.iceinspace.com.au/forum/s...light=sharpsky
The original version was a kit you built however Dave now offers a finished product that includes a dew heater. It is ascom compliant and fully computer controlled and it comes with the stepper motor housed in a metal box you can attach to the shaft of the focuser.