I'm looking to use a rotary control. This one looks pretty good: http://www.ultimarc.com/SpinTrak.html
Has anyone used it with an Arduino? I found this thread with little conclusion: spintrack rotary encoder / spinner - Interfacing - Arduino Forum and this one with no replies: Rotary encoder problems - Interfacing - Arduino Forum
It comes with a USB interface board, but this can be removed for raw encoder data. TBH I'm only really interested in whether its moving and the direction, although I'm sure speed might be useful. Happy to consider other controls but this is best looking one I've found at a reasonable price.
Basically I'm happy to give it a go but if someone has already got one working then that will save a lot of trouble for me.