06-05-2023 06:18 AM
Hi @BSTRobin
When I train Coofee or Air,
1. Class A is Air, Class B is Coffee, BSEC_OUTPUT_GAS_ESTIMATE_2 is always 100%.
2. Class A is Coffee, Class B is Air, BSEC_OUTPUT_GAS_ESTIMATE_1 is always 100%.
I try replace with another sensor , the result is tha same.
06-05-2023 03:27 PM
Hi steven_bsec,
Are you testing the config file you trained in a coffee environment?
06-08-2023 05:24 AM - edited 06-08-2023 09:33 AM
Yes , I followed the video to test config file exactly
when I detect coffee, it is OK. But when I detect normal air , it don't work well , and result is not normal air always, and sometimes is coffee.
I think that the config file is right, bucause it work well in bme688_development_kit. (Bosch-BSEC2-Library-master\examples\x8_board_examples\basic_config_state)
There is only one sensor in my project, and 8 sensors in bme688_development_kit. Does it matter?
Can you share me air-detection demo for STM32?
And I observe gas_index is 0,1,2,3,4,5,6,7,8,9 cyclically in bme688_development_kit, but in my project gas_index is 1,2,3,5,7,9 or 1,2,4,6,8,9 or other order . why?
06-09-2023 05:23 AM
Yes, I test the config file following the video
I think config file is OK. It work well in bme688_development_kit, but don't work in my project.
and I observed that gas index is 0,1,2,3,4,5,6,7,8,9 cycle in bme688_development_kit, but in my project, gas index is 1,2,4,6,8,9, or 1,2,3,5,7 or other order.Why ?
07-08-2023 05:00 PM
Hi steven_bsec,
I uploaded an example code on STM32 that enables the following macro definition in user_define.h.
#define BME68X_OUTPUT_GAS_ESTIMATE
//#define BME68X_OUTPUT_GAS_IAQ
This example demonstrates the detection of marker pen and normal air. It runs well and I hope it will be useful to you.