Hi, I am designing a board that is connected to a momentary switch,
normally i just use a pull-up resister and a series resistor and a capacitor,
the series resistor and capacitor work as a low-pass filter to suppres noise.
See the attached drawing.
But now I want to use the weak pull-up, so I just removed R1 and programmed RA4 to have weak-pull-up but it don't work if I still use R2!
Should I remove R2 or just use a smaller resistor.
Sharky
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