BMI160 temperature sensor can't be sensed the temperature, this feature is only for internal TCO or TCS compensation.
If you use it for external temperature, deviation and accuracy is not known and don't get a stable offset. It means the deviation is always stay and can't be fixed with an offset or some offsets calibration to compensate.
If you want to use temperation sensor, bme280 and bme680 are be recommanded.
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