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IR STHS34PF80 - False motion detect on external envinronment (wind and/or sun)

socha6
Associate

Hello,

we use STHS34PF80 sensor as little animals detector (FOV ~ 20cm) and we have problem with false motion detection on outside. When we have sunny day the sensor goes crazy and output random MOT_FLAG signals. We have try to change LPF_P_M and LPF_M filters but without success. Also we try to change motion threshold and motion hysteresis also without success.
Is any solution for this problem?

Thanks in advance

Adam Socha

1 REPLY 1
Federica Bossi
ST Employee

Hi @socha6 ,

Welcome to ST Community!

STHS34PF80 is based on IR technology and using it in outdoor applications you could have some unexpected IR reflections which cause more noise.

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