On Nov 27, 2011, at 9:35 PM, Xiaofan Chen wrote: > Why do you think the Uno has really advanced USB capabilities? > Ref: http://www.arduino.cc/en/Main/arduinoBoardUno Theoretically, there were hints that alternate code would be available for = the 8u chip that would enable the Arduino to serve as HID, MIDI, etc, inste= ad of just a serial port. Most of that never happened. It's again promise= d for the new "Leonardo" board (m32u based); we'll see... BillW --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .