A new design for Bluetooth LE tags removes the need for a battery and fits into a cheap, thin, stamp-size sticker, or can be embedded directly in consumer product packaging. A tiny ARM processor transmits an ecrypted ID code like other Bluetooth tracking tags, but is powered by a new antenna design that harvests power from ambient radio waves. It can also sense temperature and weight info, and transmit that data, as well, to nearby Bluetooth LE devices, including phones. The tags have been created and successfully demonstrated by Wiliot
, which has secured $50 million in funding from eight major investors, including the investment arms of Samsung, Qualcomm, and Amazon. Wiliot expects manufacturers to embed its tag into products and product packaging, which consumers could interact with, both in stores and at home, to get additional product information on their phones, or track lost items.