Thank you for your reply. I apologize for the way my post was written. Yes, this resistance range is the specification range of the BME680. I am attaching a graph of this behavior. bme680_resistance_dataIt shows the resistance data of one sensor I posted and representative data of 5 other sensors. These two data were obtained under the same environment and reacting to the same test gas. The data acquisition time is 20 seconds. When reacting to the clean ambient test gas, the representative sensor shows a smooth decrease in resistance. (No. 2 on the left) However, one sensor shows a jump from 423k ohms to 304k ohms, as shown in the graph. (No. 1 on the right) This jump occurred in one sampling of I2C communication. One sampling is about 60 msec. Is this behavior a specification of BME680?
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