Aimed at safety, the Speed-Vest displays how bad-ass you are on a two-wheel’d steed. The numbers are displayed via electro-luminescent wire controlled by an open-source embedded ‘puter. With a little stitching and soldering, everything is attached to the vest’s back panel. The makers claim the whole thing can run up to 6 hours on a single AA battery. Want your own, build it yourself Lance.
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