Hello all,
I saw several posts in terms of BME 688 example in BME688 x8 board, and here is the quick guide how to do it.
Please donwload our both libraries and add the libraries in Arduino.
https://github.com/BoschSensortec/Bosch-BSEC2-Library
https://github.com/BoschSensortec/Bosch-BME68x-Library
There is example codes for x8 board.
\Bosch-BSEC2-Library-master\examples\x8_board_examples\
You don't need to change anything, but directly build and run with the board.
Please let me know if you have any questions.
Thank you.