Quote Originally Posted by xnihilo View Post
What is a brown out? A decrease in the supply? I don't use BOD in my config byte.
Even if you do not configure BOD the PIC will only operate within a certain voltage range for the OSC speed it is running at. So if something causes a voltage draw for a short period of time that the regulator can not handle the large capacitor will help. (maybe a LCD back light coming on )
What would make noise in my circuit?? voltage regulator? LCD display?
A switch used as an input that changes position rapidly, or an output to a high speed relay, etc...
Okay for 10K. I will use them as pullups and pulldown. In my circuit I have strange behaviors on a portA.5 pin set as input (internal WPU disabled), default low and with no external Weak pulldown. When I touch any pin (no matter which one), there is an INT trigger as if +5V was getting to this specific pin (this pin is int enabled when getting from LOW to HIGH). I guess I should use a weak pull down...???
Personally I never have like the internal pull-ups, I always use an external pull up/down. And never let a pin float, always have control.