; Date: Fri Jun 22 2018
Scotty from Strange Parts stumbled across a cashier-less store in Yiwu City, China, that may predate the cashier-less stores fielded by Amazon and others in the USA. In this store every product has an RFID tag, and the checkout process involves reading the RFID tags and using a smart phone to read QR codes on a screen to approve the purchase. Inside the RFID tag is a curious little chip, and the opportunity to talk with some experts on such technology about how RFID tags work, and the equipment used in studying and designing these tags.
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