HC-SR501 pir sensor gives false triggers

[martinst (Martin)]

@Protoncek

You should ask yourself what causes these false triggerings? IR sensor can trigger when any movement occurs (curtains moving, windows opening, animals?…etc…). I have a copule of those installed and i have no falses so far. Did you try to decrease sensitivity?
Placing ouside is possible, but you must make a suitable enclosure. Also, if you don’t want triggering at daylight there’s a place for photoresistor on the PCB, it’s just not soldered. But, sadly, there’s no trimmer, for setting light sensitivity.

There were no movements at all. I have also tried to increase/decrease the sensitivity.

@AP05TLE @space_r

Do you have never a false trigger anymore since the fix?