I've currently got the Sparkfun Jamboree board successfully getting its power from, and outputting its serial output to, an Arduino Uno that I had lying around, but I think I need to get a different Arduino board that includes two serial ports.

What I think I need is:

Sparkfun serial ->
Arduino serial input 1 ->
Arduino code to translate sparkfun messages into Empeg serial commands ->
Arduino serial output 2 ->
Arduino RS-232 Add-on board ->
Empeg RS-232 input.
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Tony Fabris