Compile error in linking BSEC library to ESP-IDF for BME688

[AmirTa]

Hello,

I am using the BME688 with the ESP32-S3 in the Espressif IDE (ESP-IDF), and I want to employ the BSEC library to obtain the IAQ.

First of all, I downloaded the BSEC version 2.5.0.2 library from Bosch Sensortec's website. However, I encountered a problem linking the BSEC library to my project. I found a potential solution on Bosch Sensortec's community forum, but I encountered several errors during the project compilation. How can I resolve these errors? Additionally, it seems that the libalgobsec.h file in the forum post is empty. Where is the libalgobsec.a file?. Could you advise me on what changes I should make in the CMake file or any other file, if necessary?

Thank you for your assistance.

Best regards.

[BSTRobin]

Hi AmirTa,

Thank for your feedback.
As you used BME688, ESP32-S3 and had downloaded BSEC2.5 software, you should use the library "bsec_v2-5-0-2\algo\normal_version\bin\esp\esp32_s3\libalgobsec.a", and using the header files in folder "bsec_v2-5-0-2" will be enough. libalgobsec.h is not an official file in BSEC2.5.

[tesch]

Hello BSTRobin, i try change the libalgosec.a from the AmirTa  but i have the same problem, actualy i use the IDF 5.2, and the problem is founded in the all archicteture from ESP32, Riscv and Xtensa.
Can you help us?

In attch the printscream from the error.

[AmirTa]

Hi BSTRobin,
Thank you for your reply.
I finally managed to add and compile the library into the project, but the bsec_iot_loop function does not produce any output!!!
How should I fix this?
(The bsec_iot_init function executes well, and there are no errors in bme68x_status or bsec_status)