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stackmad

HN member
Joined
Wed, Aug 22, 2018, 12:11 PM UTC
HN karma
96
Public activity
29 items

About stackmad

An author of the Boden cross-platform framework. Find us at GitHub: https://github.com/ashampoosystems/boden

Recent public activity

  1. comment
    Comment #20053866

    Author of boden here: We have since moved away from a self written smart pointer and replaced as much as possible with standard C++ classes ( shared_ptr, weak_ptr, std::string etc.…

  2. story
  3. comment
    Comment #19035016

    Actually its 9 plants ;)

  4. comment
    Comment #19000699

    Yeah, you have to use IOKit, which hidapi wraps.

  5. comment
  6. comment
    Comment #18998975

    :) But the CO2 measurement part honestly came first.

  7. comment
    Comment #18998967

    Sure, but I wanted to see the data over time. And I was bored :)

  8. comment
    Comment #18997971

    Yeah, its quite ok.

  9. comment
    Comment #18997821

    Totally true, but my soldering iron is in the basement, so ... ;)

  10. comment
    Comment #18997782

    Yes, absolutely. I only have one device at the moment, but it sure would be interesting to see how fast the levels equalize between rooms

  11. comment
    Comment #18997773

    Yes, I agree. But this was way more fun :)

  12. comment
    Comment #18997771

    I guess it should match the outside air as close as possible. So around 400ppm

  13. comment
    Comment #18997688

    Its not that I'm afraid to die here :) Its more about improving the quality of the air. And the body is pretty bad at recognizing higher than norm CO2 level unless it gets to life …

  14. comment
    Comment #18997636

    Though with your steps it at least starts, but the webserver fails, and CTRL+C doesn't work ^^ * Serving Flask app "co2meter.server" (lazy loading) * Environment: production WARNIN…

  15. comment
    Comment #18997622

    That looks great as well! But for some reason the library they use (pyhidapi) would always crash on my Mac.

  16. comment
    Comment #18997601

    I saw some study that suggests that higher CO2 levels decrease cognitive abilities. You wont die, but I do tend to get headaches when the air gets worse.

  17. comment
    Comment #18997556

    It definitely shows that this is one of the cheapest meters on the market. But the values seem to be realistic, when having all windows open it shows 450-460 ppm which is at least …

  18. comment
    Comment #18997540

    Yeah, I've finally managed to tweak the thermostat on the radiators and the main thermostat for the heater to where I like it :)

  19. comment
    Comment #18997535

    Yeah, that was pretty quickly hacked together :)

  20. comment
    Comment #18997529

    The device on its onscreen display shows the same steps, so I think its due to how the sensor works.

  21. comment
    Comment #18997521

    Depends, this was a question I tried to answer for myself with this project. I did not easily find a good library for Python that would work on my Mac for reading the HID messages,…

  22. comment
    Comment #18997509

    Yes, I agree. I've already ordered a bunch of plants :) Sadly my building is quite old and ventilation is poor.

  23. comment
    Comment #18997501

    That looks good as well! I actually didn't know about that project. It wouldn't have worked on my specific case though since I wanted it connected to my Mac, that tool only works o…

  24. comment
    Comment #18997492

    You can only put link + title on here. And the story is rather boring :) I wanted to measure it, I got a device from amazon, found a python script to read the data, the dependencie…

  25. story