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submitted 7 months ago by L4s to c/technology

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Researcher has developed, at a cost of less than one dollar, a wireless light switch that runs without batteries, can be installed anywhere on a wall and could reduce the cost of wiring a house by ...::A U of A engineering researcher has developed a wireless light switch that could reduce the cost of wiring a house by as much as 50 per cent.

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[–] [email protected] 1 points 7 months ago

I wouldn't call it "harvesting" if you have operate power transmitters on each floor of the house. "Energy harvesting" usually means you are using something that is already present in the environment.

"each floor would have one or two RF (radio frequency) power transmitters to powe r up all switches inside the house."