this post was submitted on 05 Dec 2023
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154
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 ... (www.ualberta.ca)
submitted 11 months ago by [email protected] to c/[email protected]
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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] 3 points 11 months ago

For sure, though I question the theory. Directional wireless power I think is feasible, but this sounds like blanketing (1-2 transmitters in a house with no regard for obstacles/direction, per the article). That sounds hugely wasteful, especially given how much more energy power takes vs. signal. I do think a zigbee type solution is the ultimate answer, because even if it goes back to batteries for wall stations, data transmission like that is so much less energy than power that the battery problem becomes null-ish.