here is a little Max 4 Live Example, how you can use the ArdOSC Library…
The OSC Messages (Rotary, Push Button) from Arduino are recieved by Max4Live. dub Max4Live converts & sends it to the right Live API class. I used my Arduino sketch, which I released a few days ago – Send Pot & Button as OSC Messages.
Ableton LIVE (Presentation Mode):
Push Button = Play highlighted Scene; Rotary1 = EFX (Fade Away – Audio 2); Rotary2 = Master Level