Tiny MIT touchpad fits on your fingernail
by from Techreport on (#7FGS)
MIT researchers have developed a wireless touchpad small enough to fit on your fingernail. Dubbed NailO, the prototype is modeled after cosmetic nail stickers. It squeezes a capacitive sensor, microcontroller, Bluetooth radio, and battery into a footprint no larger than a quarter. The idea is to provide an alternative input mechanism for wearables and situations that don't map well to conventional control schemes.
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