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

septillion April 3, 2018, 8:29pm 2

Let me guess, no pull resistor? (This includes INPUT_PULLUP )

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