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submitted 1 year ago by L4s@lemmy.world to c/technology@lemmy.world

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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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[–] Integrate777 1 points 1 year ago

Oh nice. My parent's doorbell is a wireless one and I thought it was a trick. That they hid the battery and sold it with false advertising.