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Since Thomas will get married in the end of this week me and two colleagues decided to organize some kind of bachelors party for Thomas. One thing that came immediately into my mind was the creation of a sophisticated  bachelor's hat using LEDs.

The circuitry behind is not very amazing, it's basically 16 LEDs hooked on an Arduino Board, one 9V battery pack and a switch. Put all together into a standard helmet from the home improvement store and you're done. My wife gave it some funky paintings and that's it.

Since I did not need a PCB there are no schematics neither layouts for this "project" :-) However, just for completeness I will hook up the source code!

Just enjoy the video clip.

Cheers, Pepe