Hello,

I’m currently building a new house (EU). I’m planning to put ESP32 sensors in every room (top corner) with mmWave sensor to have a reliable presence detection.

I don’t know what the best way to power the esp32 is? Wi-Fi coverage should be good enough, so Ethernet is a plus but not mandatory.

POE looks nice but might require a bigger box as ESP32 with Ethernet looks bigger? Also, I’m not sure it will be able to power the mmWave sensor? I only saw 3.3V output. Any recommendations?

5V run from a central location (garage) might be difficult with voltage drop. Any recommendations for some cable specs and maybe experiences?

Last option would be a regular 230V run with 230V/5V transformer next to each ESP32, which also leads to a bigger box.

What do you think would be the best option?

Thank you for your advice!

  • silasmoeckel@alien.topBEnglish
    1·
    1 year ago

    Run cat 6a, 48v is a good choice and you can use a simple dc to dc at the esp32 end. Can do the same for the sensor. Throw it all in a plastic workbox.

    from a cost and complexity the esp32 with poe is pretty cheap and you can probably tap into spare1 and 2 to run a dc to dc for the mm wave sensor.

    • MHTMakerspace@alien.topBEnglish
      1·
      1 year ago

      the esp32 with poe is pretty cheap

      Which make & model?

      Throw it all in a plastic workbox.

      Not sure where u/Logical-Meta is located, what their standard workbox/switchbox dimensions are.