that's it, i need to add some lines to the default librarie, but i don't know were to find wire.h as i've been looking for it and still can't find it.
any help about were is it located will be preciated
Ctrl-click on the Arduino app and select "View package contents". You'll find lots of stuff in there.
thanks, it leads me to where i installed the IDE but no libraries folfer appears...
The libraries are under Arduino.app/Contents/Resources/Java/libraries
thanks a lot it has been modified!