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lumayesterday at 8:57 PM3 repliesview on HN

You can do this for much cheaper - all four of your tires are broadcasting a unique ID to report tire pressure, the radio to pick it up is cheap (because cars), and TPMS has no facility to randomize or otherwise secure this.


Replies

Gigachadyesterday at 9:12 PM

It’s actually even easier, your car has a plate on the front with a unique ID that a camera scans, often to automatically track your park time for ticketing.

I can’t really care about obscure Bluetooth tracking when every business has CCTV doing facial recognition.

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spockzyesterday at 9:08 PM

Not all cars have active TPMS. my Volvo xc90 had them but in later models they switched back to passive ones. So it is not even a given for higher end models.

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stirfishyesterday at 10:29 PM

I've had trouble reading these from more than a few feet away, but I concede that I have no idea what I'm doing