Hi steinmetz_eng,
Thank for your inquiry. Temperature, humidity, and pressure values can all be measured independently, with humidity and pressure requiring temperature values to compensate. As described in the BME280 data sheet, we strongly recommend using the compensation calculation in the sensor API of BME280 to obtain more accurate sensor data.
The gas sensor inside BME688 is physically separated from other sensors(temperature, humidity, pressure), and heating the gas sensor does not affect the temperature, humidity, and pressure sensors.
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