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Arduino-powered vending machine

Arduino vending machine!

A proof-of-concept vending machine shows how we can dispense with cash for everyday purchases, skipping credit and debit cards altogether and going straight to electronic transfer. The vending machine uses QR codes, PayPal, a smartphone camera and Twitter. And, to complete the geek-buzzword bingo checklist, the hardware is based in part on Arduino, an open source hardware platform.


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