Hi,
I made a dehumidifier smart and added a DHT11 and as the readings are not very good I added an additional BME280 at a different place.
The external device shows 66% humidity, DHT11 56% and BME280 44%
Surprisingly the relativ behavior of DHT11 and BME280 is more or less ok but I thought BME280 should be much better also with absolut values. But it is more off than DHT11.
I got that a temperature compensation could be applied but did not find much about it with Adafruit BME280 library. What is the experience to get good absolut humidity readings?
Cheers,
Nils