First of all, I'm talking about BME 680, not 688. Secondly, the link I send earlier is from your own Github. It's an example code for the "ULP plus" feature, which allows to run the sensor in ULP mode, but also allows to request an additional sensor reading e.g. with an interrupt (button press). If you don't know what you are talking about, then maybe leave the answering to other colleagues.
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