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While walking the show floor at the PayPal X Innovate 2010 developers conference today I came across this cool PayPal vending machine prototype. Ray Tanaka and his crew at PayPal Labs hacked together the multi-part system using a mechanical candy dispenser, a couple of Arduino Duemilanove, a WiShield, relay, proximity sensor, and LED display. The end result allows you to scan a QR code, make a payment, and acquire munchies using a smartphone. As you make your payment, the machine will tweet your purchase and notify a confirmation display.
[youtube http://www.youtube.com/watch?v=vryxediu7uY&hl=en&hl=en&start=0&fs=1&rel=0&showinfo=0&ap=%2526fmt%3D18]
