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.
- Fanta! :D
(Read more in Portuguese on Forum0937, and in English on Ladrillitos. Thanks for the links, Juan Macias!)