Hi Bosch Team,
We are using the BME690 sensor in one of our projects and have conducted chamber temperature testing in the range of −20 °C to +60 °C.
Based on the test results, the positive temperature readings are in good agreement with the chamber set temperature. However, we are observing a deviation in the measured values at negative temperatures when compared against the chamber temperature.
The chamber test data has been attached for your reference and review. We would like to confirm whether the observed behavior at negative temperatures is expected for the BME690 ambient temperature measurement, or if any specific compensation, configuration, or calibration needs to be applied.
Kindly review the attached data and provide your confirmation or recommendations.