Dear gbws, Thank you for your reply! I am now using the official Bosch Sensortec sensor API/drivers for Arduino IDE 2. I am using the MRK Wifi 1010 board and I compile and upload the BSEC2 library basic example that runs smoothly. However, this example doesn't compile for esp32 pico d4. I only care about the raw data and not the iaq. So, I actually need the BME68x parallel_mode example. I can compile this for MKR and esp32 boards with I2C protocol that gives me the following error: "Sensor error: communication failue". I attach the schematic for the circuits I am using. I checked using the I2C scanner library and the sensor address is 0x76. Any suggestions why the BME68x examples don't find the sensor? Thank you!
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