Controlling Lego NXT with MidiBox

[OneLittleFonzie]

Hi All

I have made a nice controller for the Arturia Prophet 5 but now I want to make something new.

My son would like to make a robot that can be controlled by midi (dancing is his idea). Now I would like to attach a infra red transmitter to the MIOS32 based box (I prefer I2C but not necessary). Has anyone any idea, experience how to do this?

I know the Lego IR Powerfuntions protocol: http://www.happybricks.com/TBs%20Media/TBs_20091029_1/LEGO%20Power%20Functions%20RC%20v110.pdf

Thanks in advance

Take care

Ron