door handles that glow with different colors depending on whether the door is locked or not. as an example of embedded electronics in everyday furniture & physical visualization, the handles are powered by wires that run throught the door & can be programmed to glow at any time. [brighthandle.com|via apartmenttherapy.com]








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This would be about 20x cooler (to me) if the texture of the handle changed, instead of the color. Unlocked = smooth, locked = abrasive/spikey.