BME280 sensor output wrong Humidity data

[Zera]

I have serveral BME280 sensors which are purcahsed recently, and find that with the same PCBA and same codes, the humidity data are different, about 10% from  the old sersor which I bought from two years agao.

Does the sensor update in recent years or the formula for calculate the humidity are changed?

Any help would be grateful, thank you so much!

[BSTRobin]

Hi Zera,

The BME280 humidity calculation has not changed, please refer to the data sheet for detailed instructions.
Additionally, ensure to purchase BME280 from official distributors or sales representatives