Sure enough they use internal pull-ups. Make sure you disable the ADCs and comparators before.
Now how to know which push button.. Are you sure of the current schematic? Any way it miss some resistors and/or diode in that?
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Sure enough they use internal pull-ups. Make sure you disable the ADCs and comparators before.
Now how to know which push button.. Are you sure of the current schematic? Any way it miss some resistors and/or diode in that?
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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