Change the sample rate of BME680 in BSEC library

[elmagua90]

Hi there:

Do someone know if is there any way of changing the sample rate od the BME680 measurements and keep all the iaq values calculation running properly?

I´m working with a esp32 using BSEC_SAMPLE_RATE_LP and going to deep sleep after every measurement. Up to now everything is workin fine either saving the sensor state in the RTC memory or a SD card connected in my project.

What I want to try is to perform a measurement every 10s insted of 3s as defined by BSEC_SAMPLE_RATE_LP. 

Thanks in advance,

Ernesto

[handytech · Accepted solution]

BSEC only supports two operating modes:

• Ultra-Low Power mode (ULP), with a sampling period of 300s (i.e. 5minutes),
• Low Power mode (LP), with a sampling period of 3s.

Note that it is possible to operate the gas sensor in ULP mode while operating the temperature, pressure and humidity sensors in LP mode. This allows the higher refresh rate of T/P/H outputs, while keeping the power consumption close to the ULP mode.