Low-power WiFi signal tracks movement, even behind walls - ExtremeTech
 

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ExtremeTech
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Low-power WiFi signal tracks movement, even behind walls
ExtremeTech
Researchers at MIT's Department of Electrical Engineering and Computer Science think they've sorted out a way to use inexpensive WiFi gear to detect objects and people behind a wall, or even in other rooms. The technology, known as Wi-Vi, is being ...





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