Question about L.E.D strip lights and the Arduino?

Using Arduino LEDs and Multiplexing
9

CrossRoads:
Okay, this is what I am talking about.
I would use 3 'channels' like this, then you can play a little with the display.

Great! Thanks a lot for that I appreciate it!

One more question if you don't mind. Could the second triangle be wired to the "ULN board" as well? Or would the second triangle need this same set up of its own?

Thanks again!