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Nice how-to over on Hack a Day making your own networked graffiti wall… Ian writes-

Wondering what we did with our web server on a business card project from last week? It’s powering a giant LED graffiti wall. Animations can be user-submitted using the online designer. You can watch a live feed of user animations as well. The online interface runs on the Google App Engine for maximum scalability and resilience. In today’s How-to we cover all the ins and outs of building your own networked graffiti wall.


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