Hairware was invented by Katia Vega of the Pontifical Catholic University of Rio de Janeiro, Brazil. By platting conductive filaments into natural-looking hair extensions, Vega and her colleagues created a wearable switch: stroking it once activates a preselected app, twice launches another. An Arduino microcontroller and a bluetooth radio in a hair clip provide the system's intelligence and connectivity. The result is app control that's "a mix between magic and James Bond", says Vega. Vega says that a woman who is feeling threatened could, for example, use it to broadcast her location or send a preset emergency text message, all without visibly using a smartphone. She revealed Hairware last month at the IUI 2015 user interface conference in Atlanta GA
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