~derf / projects / Wetter
dark mode

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

Alle Angaben ohne Gewähr.

istminmax
Temperatur (West)↘ 23.8 °c22.4 °c29.0 °c
Temperatur (Nord)↘ 24.0 °c22.1 °c30.8 °c
Temperatur (Schatten)↘ 25.1 °c21.7 °c26.6 °c
Luftfeuchtigkeit (West) 52 %39 %53 %
Luftfeuchtigkeit (Nord) 53 %38 %56 %
Luftfeuchtigkeit (Schatten) 50 %46 %57 %
Luftdruck 1006 hPa1004 hPa1007 hPa
Wind 0 km/h0 km/h53 km/h
Niederschlag 0.0 mm/h0.0 mm/h0.0 mm/h
PM10 6.8 µg/m³3.7 µg/m³94.4 µg/m³
PM2,5
Licht 0 lx0 lx56402 lx

Stand: 15.08.2022 21:50 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 mains-powered Raspberry Pi 4 and a solar-powered ESP8266 board. Their current status is:

nowminmax
Load 0.3 0.1 0.4
CPU Temperature 51 °c48 °c58 °c
Aux Temperature 37 °c35 °c44 °c
USB Voltage 4.73 V4.67 V4.87 V
Battery 4.10 V4.07 V4.17 V