Fellow tinkerers I have a strange one that I hope someone can explain so I don’t go mad. Iam using a pir sensor to wake an Arduino attached to interrupt 0 (nothing out of the ordinary) However I am able to wake the Arduino even with there being no connection between the pir sense pin and the inte…

Wake from sleep without interrupt

jremington April 4, 2018, 2:31am 6

Not needed it seems as waving my hand past the pir wakes the mcu.

Floating input.

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