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"If you're looking for a project for the weekend and the Knock Lock seems a little naff, why not try building your own Bluetooth Star Trek communicator? This is definitely not a project for the faint of heart -- expect to custom cut a circuit-board, drill some holes, add a serial port, a Bluetooth module, and a microcontroller. That said, when it's all said and done you'll be placing (and answering) calls the same way they do in the 23rd century: by speaking through a small, distorted speaker. If this is your thing, hit up that read link to get the full step-by-step. But before you go that route, be sure to peep the video demo after the break.See more video at our hub!"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2009/11/06/make-your-own-bluetooth-star-trek-communicator-video/>