Hi All,
I use STHS34PF80 for presence detection with embedded algorithm however it easily get stuck in presence status and cannot release from the status.
Use case:
People sit in from of the sensor around 30 cm, with lens on STHs34PF80.
When people enter the FOV it's triggered as presence status.
When people sit still for a while (e.g. 30 min), the TPresence keeps glowing.
When people leave, TPresence drops however it cannot across threshold.
TPresence will keep fall very slowly until it across the threshold however sometime it will never across below the threshold.
Red line: presence flag
Orange line: TPresence value
my settings:
lpf_m: DIV_200
lpf_p: DIV_200
lpf_p_m: DIV_9
lpf_a_t: DIV_50
ODR: 4Hz
change lpf_p to DIV_50 doesn't help
Any idea why TPresence keeps rising when people sit still and fall very slowly after people leave ?
And how to solve the issue ?
