Emoticon Helmet

Step 7: Let there be power!

To power the Arduino, we used an old battery holder that I salvaged off of an old RC car. It had a very nice on/off switch on it and fit right over the hole to cover up the Arduino. To power the Arduino with it, just plug the positive into the V-in pin and the negative into ground. We decided that it gave the helmet a pretty cool look if the batteries were exposed, but still firm in place, so we just left it open.

Black duct tape. It works. :D

And that's it! Enjoy watching people give you weird looks as you give them even weirder looks, they just can't tell that you are....