Hi Andre,
AFAIK, the 'bone has to USB ports.
The first is a mini A OTG device, which gives access to an onboard hub with the Ethernet/UMS and FTDI/JTAG
The second is a host A port.
My guess is that you can use the mini-A port (in UMS or Ethernet mode) to configure the board from a host machine, and hook your LED device board to the A port. Of course, you will have to include USB host features in your Android image.
HTH
--JB.L
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