DMX RGB STEPPING (dmx_rgb_step.txt)
Put the 'autorun.brs' file in the root directory of the SD card.
The script (autorun.brs) will step thru 3 channels.  Turning on channels 1 thru 3 in step fashion (one channel on at a time).
Note: The script is written in 'byte protocol'.  Be sure to select byte protocol on you DMX board!
Note: allow about 1 minute for the BrightSign to boot.  It first has to load it's entrpreter, then has to compile the script.