BSEC stop after more than one month

[hamady]

Hello,

I'm using the BME680 with a STM32WLE and everthing was working well.

https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/How-to-use-BSEC-IOT-exemple-for-the-BME6...

Between the 03/06 to 21/07 everything was ok but after the bsec IAQ values are competly wrong.

I'm wondering if that is not related to the timestamp hat can fail after reaching max value.

Thanks

[BSTRobin]

Hi hamady,

You can check whether BSEC is executed correctly, check the printed information of gas resistance value, IAQ value, and timestamp.

[hamady]

Hello, 

I disabled the UART prints to reduce power consumption,

But i think that it is related to timestamp variable beacause all my boards failed the same time 

int64_t get_timestamp_us()
{
	int64_t system_current_time = 0;
	uint32_t tick;
	tick = HAL_GetTick();
	system_current_time = 1000*(int64_t)tick;
	return system_current_time;

}

Thanks

[hamady]

Any update ? @BSTRobin 

[BSTRobin]

Hi hamady,

You should ensure host can provide correct timestamp value.
Check whether the correct timestamp has been provided from the host side, and usually turn on RTC in low power mode to ensure that the time is continuously counted. So read the time from RTC and calculate and generate a timestamp.