Perfect for those that enjoy biking at night is the Turn Signal Biking Jacket. Using the LilyPad Arduino microcontroller board and LEDs, a biker can signal to drivers much easier without having to use arm signals. By using the controls embedded in the wrist, signaling your turns are no longer a problem in the dark. No more wearing those hideous bright reflector vests.

Photo from leahbuechley’s Flickr page.

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Via: MAKE