Ambient Corp. has designed a compact system that helps people who can't speak because of neurological disorders, traumatic brain injury, cerebral palsy or other problems. Its Audeo, a wireless sensor worn on the neck, captures the wearer's neurological activity going from the brain to the vocal cords. This activity is digitized and turned into speech, letting users communicate in person or by phone. A Texas Instruments' MSP430 microcontroller uses little power and manages overall consumption so the Audeo can last more than eight hours on a single charge.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
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