Wiliot, a semiconductor company, has developed a paper-thin, battery-free Bluetooth tag, which can serve as a power unit for devices connected to the Internet of Things. The postage stamp-sized chip is able to harvest energy from ambient radio frequencies around us, such as Wi-Fi, Bluetooth, and cellular signals. The Internet of Things promises to connect billions of otherwise ordinary devices to the Internet, but when each one needs to have its own battery, there’s a limit to how small or cheap they can be. The Wiliot tag provides an innovative solution to the problem.
Paper-thin Bluetooth chip uses radio frequencies to harvest energy
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