this post was submitted on 05 Dec 2023
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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 ... (www.ualberta.ca)
submitted 1 year 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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[–] czardestructo 33 points 1 year ago (3 children)

Enocean has been making battery free wireless light switches for almost 15 years. I've personally used them for about 8 years and love them. They're a lot more expensive then the $1 quote in the article but still cheaper than an electrician. They work with a strike to a piezoelectric element to make energy and transmit the signal.

[–] Buck 5 points 1 year ago (1 children)

I use something like this for my wireless doorbell because people kept stealing the battery. I've had it for years and it works really well.

[–] luluApples 21 points 1 year ago (1 children)

I know times are tough but who TF out here stealing batteries

[–] ForgotAboutDre 7 points 1 year ago (1 children)

It's probably someone in his house. They either think the door bell is too loud or need the batteries for another device.

[–] [email protected] 1 points 1 year ago

Ah yes those "other devices"... check the wife's nightstand

[–] FooBarrington 4 points 1 year ago (1 children)

I've worked with these professionally, but never actually found a way to purchase them myself. Can you recommend a supplier?

[–] czardestructo 4 points 1 year ago* (last edited 1 year ago) (1 children)

Various companies repackage or license the enOcean parts. I've used this one from Amazon for about 6 years and haven't thought about it. I've also used others from this brand for 8+ years and had no issues. I bought an old house around Boston that had power in the ceilings but no switches anywhere so this worked perfectly for me and I was able to do it all myself.

[–] FooBarrington 2 points 1 year ago

Thank you!

[–] [email protected] 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.