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About suads
since
10-05-2023
10-23-2023
suads
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10-23-2023
11:18 AM
Hi, @BSTRobin thanks for the response But I m having a huge diferrence about 1000 ppm under same conditions. I also used an arduino with the official bsec https://github.com/boschsensortec/BSEC-Arduino-library getting similar results. How can I be sure that my measuremnts are good?
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10-20-2023
05:03 PM
Hello, I'm using the bme-680 and bsec lib v2.4. for co2 equivalent measuring, and I have another sensor an photoacoustic NDIR sensor inside a closed box with dimensions 50x50x50 cm with a candle inside. This project will be used for air quality in house, So my goal is to achieve similiar results for co2 measurments . When both sensors are inside box, the values are near 400 maybe 100 ppm difference. But when I light up the candle the values go crazy the NDIR sensor is about 1800 ppm and the bsec is 400 ppm and stays there, the co2 acuuraccy changes 2 or 3. If I blow out the candle and open the box it takes NDIR some time to go to normal value 500 ppm , but then bme680 is going up to 2000 ppm and it takes over 4-5 hours to go normal again 500 ppm. Are my testing conditions good? Is it posible to test the sensor in this way? And what is the best way?
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10-19-2023
07:01 PM
Hi, @BSTRobin It was an issue on my side. I increased the stack size also there was a Bug when writing to the flash, the size of the buffer needs to be aligned by 4, so when writing to the internal flash bsec_state with len =221 it just froze even the debugger was not working, and I was not sure what was hapenning. And I was so sure that my flash read and write was working, because the way I tested I used a buffer of the size 4096(aligned by 4) wrote on an address and read it and it was always good. Thanks, regards Suad
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10-17-2023
02:30 PM
Hi, @BSTRobin I'm using the latest version 2.4.0.0 and using the normal_version/bin/gcc/Cortex_M33 static library libalgobsec.a and using the Simplicity studio version 5 from Silicon labs.
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10-17-2023
11:31 AM
Hello, I ported the bme-680 and bsec library and using the bsec_integration.c on a erf32xg22 board with cortex m33. I managed it to get it working but I m having some issues with the local buffers in the function bsec_iot_init my code stops executing it goes into the default handler(infinte loop) when this buffers are local. uint8_t bsec_state[BSEC_MAX_STATE_BLOB_SIZE] = {0}; uint8_t bsec_config[BSEC_MAX_PROPERTY_BLOB_SIZE] = {0}; uint8_t work_buffer[BSEC_MAX_WORKBUFFER_SIZE] = {0}; But If I dynamicaly alocate them or move them as global static variables it works. I want also to implement the state_load and state_save functions writing to internal flash. And yet again I m having issues with the buffers when it needs to call the function state_save it just stops working. If I increase the bsec_state buffer size it goes through, but then I can not load the state. What could cause this issues? What are the sizes for BSEC_MAX_STATE_BLOB_SIZE,BSEC_MAX_PROPERTY_BLOB_SIZE,BSEC_MAX_WORKBUFFER_SIZE? Regards, suad
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