differentiate sample rate on bme688

[Prop4et]

I'm trying to use the SAMPLE_RATE_LP for T/H/P and Gas resistance and ULP for IAQ, CO2 and VOC.
Putting everything at ULP or everything at LP lets me se the outputs and putting GAS, IAQ, CO2 and VOC at ULP and T/H/P at LP works fine too (as expected, Gas IAQ, CO2 and VOC are updated every 5 minutes in this case), if i put GAS at LP and IAQ, CO2 and VOC at ULP it doesn't show the values for IAQ, CO2 and VOC even after the requested time has passed (i waited for more than 20 minutes) ì.

If anyone can tell me why this happen or point me to somewhere where this is explained it'd be nice

[BSTRobin]

Hi Prop4et,

If you refer BSEC2 example code and set sample rate to BSEC_SAMPLE_RATE_LP, the output data will be updated every 3 seconds. Did you use config file under "config\bsec_sel_iaq_33v_3s_4d" folder?

[Prop4et · Accepted solution]

Yes.

I came to the conclusion that i can use LP for TPH and ULP for G AQI and CO2 and then send them together  to update subscription and everything can keep on working without returning an error.

I then actually switched to ULP since i have the needs of running on a battery powered device, but i wanted to experiment with different scanning samples in at the same time.

Thank you.