this post was submitted on 26 Jul 2024
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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 11 months ago by schizoidman@lemmy.ml to c/technology@lemmy.world
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cross-posted from: https://lemmy.ml/post/18426215

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[–] TimeSquirrel@kbin.melroy.org 2 points 11 months ago* (last edited 11 months ago) (1 children)

Technically, a properly tuned receiver that's using the signal for power can create radio "shadows" behind the device. People have also been caught with giant coils in their attic siphoning power from nearby radio stations and high voltage power lines, because they can detect the power draw.

[–] KairuByte@lemmy.dbzer0.com 2 points 11 months ago

They… have? Have a source? That sounds nuts!