metriful / sensor

Sensor by Metriful | Indoor environment monitoring | Documentation and code samples
https://www.sensor.metriful.com
MIT License
110 stars 37 forks source link

Temperature calibration #25

Closed rmazzali closed 3 years ago

rmazzali commented 3 years ago

Hello, I created a (temporary) custom carton box to hold the sensors and the Pi zero board that runs the logic. The Metriful board is outside the case, the other components are inside. The board and PPD42 sensors generate heat and this affects the temperature reading. Does anyone have any suggestion to make a better case or find out a way to calibrate differently the temperature ? thank you

metriful commented 3 years ago

The Pi and PPD42 generate a lot of heat, so you need to keep the Metriful board separate and insulated from them, including heat conduction through the case walls.

If there is self-heating from the Metriful board you can try: