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mike2872

HN member
Joined
Thu, Oct 23, 2025, 4:06 PM UTC
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46
Public activity
38 items

About mike2872

Building TOMMY to bring motion and presence detection to smart homes using Wi-Fi sensing

Recent public activity

  1. comment
    Comment #49003316

    There are also TOMMY ( https://tommysense.com ) and ESPectre ( https://espectre.dev/ ) in addition to the options listed under 'Smart Light Sensing' which are more Home Assistant o…

  2. story
  3. comment
    Comment #45962173

    Founder of TOMMY here. I'm glad you like the ESPHome support. It was one of the most requested features before implementation. Regarding the lifetime license for Discord members, t…

  4. comment
    Comment #45720589

    I can understand that. I used to do a lot of game streaming with Parsec and ended up with a similar setup. Right now, TOMMY only use Wi-Fi and doesn't support using ethernet for th…

  5. comment
    Comment #45720526

    It's possible to have the devices in-wall, but it might not be that practical as you point out. Or at least they would have to be taken out once for flashing, then OTA updates woul…

  6. comment
    Comment #45704779

    Thanks! I'm glad you like it. Sounds like a great project. Using the Wi-Fi signal directly might work in your case. It would be nice to go back to actually using the bedroom as a p…

  7. comment
    Comment #45704753

    I'm connecting them to a 10000 mAh powerbank which lasts 2-3 days I think. But I think it's pretty specific to the board you have.

  8. comment
    Comment #45695613

    Actually, you are right. I confused myself. You would need to have them connected to the same Wi-Fi as that determines the bands and channels they communicate on even though the co…

  9. comment
    Comment #45694707

    Unfortunately not. Even though the concept is the same, Philips Hue uses Zigbee as the sensing protocol which isn't compatible with the Wi-Fi sensing TOMMY uses.

  10. comment
    Comment #45693725

    You actually won't need to configure a SSID at all. The peer-to-peer communication is handled by the devices internally without any manual setup.

  11. comment
    Comment #45692924

    Yes, if I understand you correctly then it already works with that setup. So you can have the ESP32s over ethernet and it still works as long as it's on the same network as TOMMY (…

  12. comment
    Comment #45692417

    Thanks, I'm glad you like it! Let me know how it works for you. And if you need any help, feel free to reach out. A zone is 2 or more devices. So 2 works just fine. Instead of a st…

  13. comment
    Comment #45692326

    Yes that would work. They don't need to be connected to the router on Wi-Fi, it can be ethernet too. The ESP's will connect with each other peer-to-peer.

  14. comment
    Comment #45691356

    Right now it is a requirement that the device running TOMMY (e.g. Home Assistant) and the ESP32 nodes are on the same network. The communication between the ESP32's are peer-to-pee…

  15. comment
    Comment #45691331

    ESPresense and TOMMY solve different problems right now. ESPresense tracks specific people with IDs (even when stationary), while TOMMY detects anonymous motion across zones. For y…

  16. comment
    Comment #45691296

    Unfortunately it doesn't support this yet. But it's on the roadmap and something I want for my apartment.

  17. comment
    Comment #45691285

    From my understanding, Wi-Fi sensing requires at least two antennas (transmitter and receiver) to measure signal disruption. This could be one device with both antennas, or two sep…

  18. comment
    Comment #45687897

    That was also one of the papers I read early in my project. Really fascinating stuff. The use cases for Wi-Fi sensing are vast. Motion and presence sensing is only scratching the s…

  19. comment
    Comment #45687398

    Yes it works outdoor too. Although experimenting with device placement is crucial for good results. I think there are different battery powered ESP32 you can buy. I have some of mi…

  20. comment
    Comment #45687372

    Sounds good. Your application should be approved now. Otherwise let me know.

  21. comment
    Comment #45687355

    While theoretically possible, this would be a very involved surveillance method compared to simpler alternatives that already exist (cameras with telephoto lenses, thermal imaging,…

  22. comment
    Comment #45687177

    I believe that was the initial paper which really started the Wi-Fi sensing research. Although a lot of research has come after that. It's a really fascinating technology with a wh…

  23. comment
    Comment #45687086

    Haha, didn't even think of that song by The Who before someone mentioned it in another comment.

  24. comment
    Comment #45686933

    Sounds good! Talk to you there.

  25. comment
    Comment #45686802

    I'm glad you made an exception, though. I'll help you get the board flashed.