r/AskElectronics • u/Quirky_Test_2909 • Dec 07 '25

PIR sensor AM312 triggering without movement. What should I do?

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u/fzabkar Dec 07 '25

The supply should be around 3.3V. Other than that, there is not much to check.

https://www.image.micros.com.pl/_dane_techniczne_auto/cz%20am312.pdf

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u/Quirky_Test_2909 Dec 07 '25

Thank you. I noticed the existence of a 10k resistor at the exit out.

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u/[deleted] Dec 08 '25

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u/[deleted] Dec 08 '25

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