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LEGO MINDSTORMS Vending Machine by Ricardo T. | The Brothers Brick
I’ve seen lots of cool creations on the various LEGO MINDSTORMS NXT blogs I read, but none of them compares to this working vending machine built by Ricardo T. A few of my favorite features: Working coin detector that returns correct change. Five-key keyboard that supports input to order 57 different items. Password-protected coin drawer. …