~derf / projects / Wetter
dark mode

Aktuelles Wetter in Dortmund Eichlinghofen; min/max beziehen sich auf die vergangenen 24 Stunden.

istminmax
Temperatur↑ 11.8 °c4.6 °c16.1 °c
Luftfeuchtigkeit↘ 66 %49 %85 %
Luftdruck 1024 hPa1018 hPa1024 hPa
Wind 0 km/h0 km/h46 km/h
Niederschlag 0.0 mm/h0.0 mm/h1.4 mm/h
PM10 17.1 µg/m³2.2 µg/m³84.7 µg/m³
PM2,5 4.8 µg/m³0.9 µg/m³41.3 µg/m³
Licht↑ 16294 lx0 lx50135 lx

Stand: 16.10.2021 11:50 Uhr

Sensors

  • Bosch BME280 (Temperature, Pressure, Humidity via I²C). Works like a charm with the Bosch Sensortec BME280 driver
  • Maxim MAX44009 (ambient light via I²C)
  • NOVA SDS011 (PM2,5 and PM10 fine dust particles via UART). Needs post-processing when used in high humidity environments, e.g. during fog or rain. I haven't implemented that yet.
  • TFA Dostmann 30x3161 (tipping bucket rain gauge / Regenwippe with reed switch). One impulse per 0.45mm (i.e., one impulse per 0.45l/m²)
  • WH1080 anemometer (with reed switch). Wind speed in km/h is number of impulses per second * 2.4; IIRC it's one or two impulses per revolution.

Meta

Data collection is managed by a Raspberry Pi 4. Its current status is:

nowminmax
Load 0.0 0.0 0.1
CPU Temperature↗ 45 °c37 °c50 °c
Aux Temperature 32 °c27 °c36 °c
USB Voltage 4.9 V4.7 V4.9 V