Hi electro_bloom,
Have you already seen the samples from Github?
Bosch-BSEC2-Library/examples/x8_board_examples/basic at master · BoschSensortec/Bosch-BSEC2-Library (github.com)
There is a mini library called CommMux Bosch-BSEC2-Library/commMux.cpp at master · BoschSensortec/Bosch-BSEC2-Library (github.com) that abstracts the use of the IO expander to control the 8 sensors.
The use of the library can be seen here : Bosch-BSEC2-Library/basic.ino at master · BoschSensortec/Bosch-BSEC2-Library (github.com)
Hope that helps,
Regards,
kgoveas
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