reading PIR open collector - Raspberry Pi Forums

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i have pir sensor have connected arduino, , can read high/low perfectly
fine. works well. attach same circuit pi, signal on gpio24,
, cannot work.

have verified gpio24 right one, connected led , set output , works.
however, connect pir, set input, , returns 1 cat gpio24/value.

doing wrong?

i can't think of reason why wouldn't work on pi.

have gpio pulled high via internal resistor. when pir alarms it'll pull gpio low.

connections have between pi , pir?


raspberrypi



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