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Researchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered devices (www.tomshardware.com)
submitted 2 years ago by to c/technology@lemmy.world
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cross-posted from: https://lemmy.ml/post/18426215

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[–] 8 points 2 years ago (1 child)

Not new indeed. Kinda reminds me of old Nextel phones that you would put a little LED on the antenna and it would blink from the EMI when sending and receiving data.

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