About brianchen

Hi Bosch team, My system controls external I/O, and running scan mode for gas estimation of BME688. The lib is v2.4.0. Checking the integration guide (session 1.3.2), BSEC needs to read sensor every 35 ms ?  That means in bsec_iot_loop() we can only let the task sleep for <35ms.  What if we let the task sleep extend to 200 ms? Will this influence the gas estimation accuracy? or cause BSEC unstable?  Thank you! ... View more

Hi, I'm using BSEC v2.4.0 with BME 688 on ARM m4 SoC. The system enables BME 688 scan mode with heat profile generated by AI studio.  It often sees bsec_do_steps() function return 5, i.e. Gas index not provided to bsec_do_steps() from log messages. Usually 1-2 times per hour. I don't see any problem from the input data of bsec_do_steps(). When this happens, I need to re-init the BSEC and sensors by calling bsec_iot_init(), otherwise it cannot retrun to normal state. The problem is when I reinitialzie the BSEC lib, the gas estimation will unstable for 1-2 min. The data shows peak. I can hide this for 2 min but seems not a good idea. Any suggestionon this issue? How to avoid bsec_do_steps() return error? Thank!       ... View more