http://at.or.at/hans/pd/objects.html
You can read all about the protocol design here:
http://www.arduino.cc/playground/Interfacing/Firmata
Here are some key changes:
.hc
I spent 33 years and four months in active military service and
during that period I spent most of my time as a high class muscle man
for Big Business, for Wall Street and the bankers. - General
Smedley Butler
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