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Balcony WX station de UT3UMS



It requires platformio and gnu make, obviously.

make # or `make build`
make flash

Usefull info for future


In the event of TVOC issues, inspections should be carried out to find
the root cause of the problem and address it as exposure to the VOCs
may harm health. Indoor VOC levels up to 350 ppb are
acceptable. However they should not exceed 500ppb.

    400 ppm: average outdoor air level.
    4001,000 ppm: typical level found in occupied spaces with good air exchange.
    1,0002,000 ppm: level associated with complaints of drowsiness and poor air.
    2,0005,000 ppm: level associated with headaches, sleepiness, and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.
    5,000 ppm: this indicates unusual air conditions where high levels of other gases could also be present. Toxicity or oxygen deprivation could occur. This is the permissible exposure limit for daily workplace exposures.
    40,000 ppm: this level is immediately harmful due to oxygen deprivation.

Particulate matter

are extremely fine particulates with a diameter of fewer than 1 microns.
(also known as fine particles) have a diameter of less than 2.5 microns.
means the particles have a diameter less than 10 microns, or 100 times smaller than a millimeter.


In gneral I want the stack to be pluggable as much as possible. The current scope of wanted readings is not including any plans on it's implementations.

  • Thermometer - provided by HDC1080
  • Humidity sensor - provided by HDC1080
  • Particulate matter

    • PM2.5 - PS3003 acuired
    • PM10
    • PM1 - I might need it to indoor mod
  • Preasure sensor
  • Seismograph
  • Ionising radiation sensor
  • UV-sensor
  • Gas sensors:

    • CO2 - eCO2 provided by CCS811
    • TVOC - eTVOC provided by CCS811
    • CO
    • H2S
    • NH3
    • O2
    • LEL
    • smoke and fire