For every one who wonders what an easy way could be to master the Arduino microprocessor board, and control it with vvvv, I introduce the Firmata firmware.
Just upload to the Firmata sketch to your Arduino and start playing with the input pins and the output pins.
I will show you Buttons, Potentio meters, Light resistors, Piezo speakers, Servo engines and an LED,
All the electronics used are the BASIC examples of Arduino.
I am just showing a modified Firmata patch from the Girlpower folder, so there is nothing to download.
Learn more about Arduino: http://www.arduino.cc/
And read more about vvvv: http://vvvv.org/