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  • JBeale's Avatar
    09-14-2020, 03:43 PM
    FWIW, apparently my PMS5003 sensor (also used in the "PurpleAir" monitor) yields numbers around 2x higher than the official EPA PM2.5 values for woodsmoke particulates specifically:...
    11 replies | 543 view(s)
  • JBeale's Avatar
    09-14-2020, 12:35 AM
    Interesting to see how things change over time, with the sensor in one location in the living room. Inside reading peaked this morning near 300 around 5 am. If I had a continuously running outside one as well, I guess...
    11 replies | 543 view(s)
  • JBeale's Avatar
    09-13-2020, 12:51 AM
    Using a T4.1 with its handy built-in SD card holder, I made a data-logging version in a cardboard box, and it went on a trip in the car to DG's ("doting grandma") place and back, and sure enough there is a reason that...
    11 replies | 543 view(s)
  • JBeale's Avatar
    09-12-2020, 07:13 PM
    You show a very nice setup and some great data! Right now I'm making a portable logging setup with another Teensy and PMS5003 to compare readings at my place with my mother-in-law's. We have a HEPA filter unit on order,...
    11 replies | 543 view(s)
  • JBeale's Avatar
    09-12-2020, 04:25 PM
    Happily it's cold and foggy just south of Portland right now, which is helping slow the fires. Looking at the satellite map, changing winds are pushing the brownest-looking smoke more into western WA, than OR where...
    11 replies | 543 view(s)
  • JBeale's Avatar
    09-12-2020, 05:30 AM
    Photo shows a T3.1 hooked up to a Plantower PMS5003 air quality particulate sensor https://aqicn.org/sensor/pms5003-7003/ and a small OLED display to graph the reading vs time. I had it inside, took it outside briefly...
    11 replies | 543 view(s)
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About JBeale

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About JBeale
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PM2.5 air quality monitor - Oregon fires 09-14-2020 03:43 PM
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10-15-2020 05:17 AM
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10-25-2012