3 ms·

> TPMS Curious about this. What else does this do besides measure the pressure of your tires? Or could the system transmit some other info?

• edrxty 3y ago
  It continuously transmits a unique ID. You've probably seen large panel antennas mounted on highways, these are frequently there to read this ID and use it for volume/transit time stats.
  • jeffbee 3y ago
    Who cares? Your car has, and is required by law to have, a unique identifier that is clearly visible from 100 meters away.
    • _moof 3y ago
      I don't particularly care but this thread started as a discussion of how to eliminate as many radiated identifiers as possible.
      • jeffbee 3y ago
        I understand, but people who want that property in a car need to be restrained preemptively.
        • whelp_24 3y ago
          I think we can agree that line of sight to a specific small area is a rather important requirement. Why be nonchalant about privacy?
    • akira2501 3y ago
      And yet.. they still leave you with the ability to completely remove it from the vehicle in under 5 minutes and then drive on the roads anyways. The idea that I have to allow myself to be compromised or ignore that compromise because there's some other _partially_ equivalent identifier is not justified.
• _moof 3y ago
  The sensors aren't physically wired to the car; they're radios inside the tires, and as edrxty noted, they transmit a unique ID.
• bluGill 3y ago
  TPMS is often integrated into a lot of other radios as well. That way they only have to certify one radio device.