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An LPD6803 based LED mod­ule is an “intel­li­gent” pixel, it can mem­o­rize its color and passthrough the data and power con­nec­tion. This means you can drive a lot (sev­eral thou­sand) intel­li­gent pix­els with just 4 cables (2x power and 2x data).

Take a look at ladyada’s very infor­ma­tive post about the LPD6803 module.

So where to buy these Intel­li­gent, LPD6803 based Pix­els? At my Pix­elIn­vaders Shop for example!

Needed Hard­ware:

• An Arduino Com­pat­i­ble Board
• A 12V Power sup­ply (an old ATX Power sup­ply is per­fectly fine)
• A strand of some LPD6803 based LED modules
• Some cables to con­nect the LPD6803 module

I had some card­board angle lay­ing around an thought, why not build a DIY Wall Washer.

And here is the result:
 
The wiring is very easy, take a look at this wiring dia­gram done by ladyada:

Con­nect pin 2 (yel­low) to the green color of the LPD6803 Mod­ule.
Con­nect pin 3 (green) to the blue color of the LPD6803 Mod­ule.
Red is V+, Black is GND.

Links:
- LPD6803 LED mod­ule shop
- All source files on GitHub

Two Videos show­ing the Wall Washer in action. Note: The Wall Washer looks brighter in reality.