Hi, Please don't use Arduino github example code, there is buggy now. Instead, please use our official library and example "bsec_iot_example.ino" as url - https://www.bosch-sensortec.com/software-tools/software/bsec/ Then, you need to migrate some steps as below. ( Currently, I'm working on Arduino DUE) 1) Unzip src.zip file and copy to BSEC library src folder. Could be C:\Users\USERNAME\Documents\Arduino\libraries\BSEC-Arduino-library-master\src 2) Unzip bsec_iot_example.zip and run it. If you want to migrate in your way, please refer to BST-BME680-Integration-Guide-AN008-48.pdf in our latest BSEC official library. Please let me know if you have any questions. Thanks, Minhwan
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