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I wonder if single twisted pair Ethernet that's being standardized with PoE might become popular for cheap sensor devices... Putting WiFi on a sensor makes no

I wonder if single twisted pair Ethernet that's being standardized with PoE might become popular for cheap sensor devices... Putting WiFi on a sensor makes no sense when you still have to run a power wire.

jon-wood 6y ago
I don't know how it turned out, but a friend of mine was talking about running a DC power loop round his house alongside the AC one. The idea was that he could pull 5-12v lines off that for powering things like motion sensors, or even tablets being used as control panels, rather than having the house scattered with USB wall warts.
- Gibbon1 6y ago
  What's potentially interesting is the 802.3bt PoE standard, power up to 55W or 90-100W. And data.
  - sgt 6y ago
    What PoE switches are compatible with that right now? I would love to wire the house with that.
    - Gibbon1 6y ago
      I'm not sure. Though I see a whole lot of chatter from chip makers trying to sell solutions into that market. Sounds like they have figured out you can run lighting and and other IoT stuff off it. If you think about it most current IoT stuff blows. You need power for the device. And then you're using shit like WiFi for data. And even worse shit like Bluetooth for configuration. Security is a big big problem because it's brittle and conflicts with consumers need for stuff to just work. PoE solves all of those issues.
      - sgt 6y ago
        Yes, even having my CCTV cameras on PoE is such a pleasure. Just one cable to worry about.
fanf2 6y ago
The single pair ethernet web pages gave me the impression that it is aimed at industrial applications - the connectors alone look like they would cost $2 https://singlepairethernet.com/en/ https://singlepairethernet.com/en/