this post was submitted on 18 Dec 2023
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things that are mildlyinteresting

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None of the others in town have these, thought it was unusual enough to share

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[–] [email protected] 4 points 11 months ago (3 children)

Do you know how it works? Doesn't seem to be electronic or so... Perhaps mechanical magnet based or so

[–] nulatium 15 points 11 months ago* (last edited 11 months ago)

There's a talk at DEFCON on YouTube about hacking them. Great way to see how it works.

https://www.youtube.com/watch?v=iprBprAFXCk

[–] [email protected] 10 points 11 months ago

https://www.youtube.com/watch?v=-QKcprQD0zc

It's a fancier version of the electric dog collars. If you go over a perimeter line it'll turn on a parking brake for that one wheel.

[–] [email protected] 6 points 11 months ago (1 children)

Probably an electrical fence type deal. When the signal gets too weak the pins pop out to prevent the wheel from rotating. Didn't park near the edge of the property to test it lol

[–] [email protected] 2 points 11 months ago (1 children)

But what powers the wheels? Charged by spinning? What happens if they don't get used long and the wheel dies.

[–] nulatium 1 points 11 months ago

By spinning yes, they operate mostly passively and therefore last a long time, including by having terrible security to save battery life.

https://www.youtube.com/watch?v=iprBprAFXCk