Weather Station
Carrboro, North Carolina
Current temperature
--.- °C
--.- °F
Watching for the next wildlife visitor…
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Temperature, relative humidity, and pressure measured together over the last 30 days. Color runs from older to newer readings; the red star is the latest.
This is a view of covariance in the local weather, not an ideal-gas-law fit. PV = nRT reduces to P ∝ T only when the amount and volume of gas are fixed; the open atmosphere satisfies neither condition.
A Raspberry Pi records local weather and air-quality conditions using two environmental sensors:
- DHT22 / AM2302 — Measures ambient air temperature and relative humidity.
- BME680 — Independently measures temperature and relative humidity, along with barometric pressure and gas resistance.
- VOC / air-quality indication — Changes in BME680 gas resistance provide a relative indication of changes in volatile organic compounds. This is a trend measurement, not a calibrated VOC concentration or air-quality index.
- Camera (OV5647) — Captures the site in daylight and low light using adaptive day, twilight, and night imaging.
| Direct measurements | Temperature and humidity from both sensors; pressure and gas resistance from the BME680 |
| Air-quality output | Relative VOC-related gas-resistance trend (not calibrated ppm or AQI) |
| Weather data block | Every 30 seconds |
| Data sent to server | Every 5 minutes |
| Forecast model | Temperature and humidity forecasts through five hours, updated from accumulated station data |
Source code: github.com/nialljmiller/weather_station
↓ Download all weather data (.csv)
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Experimental five-minute forecasts are retrained every six hours.
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