Fader TouchOSC ?? (library ArdOSC)

Does anyone know how I can control the intensity of an LED with the library ArdOSC?
I am using Arduino Leonardo + Ethernet Shield.

ArdOSC download : GitHub - recotana/ArdOSC: Open Sound Control(OSC) Library for Arduino (tested Arduino 1.0-rc1 & Arduino Ethernet)

or

Thanks!