>
>
> > And yes, adding resistors between the micro and the real world is always
> a
> > good idea, up to the point where the resistor begins to interfere with
> > getting the job done.
>
> Even between two micros on the same board?  Two more components to
> assemble, two more points of failure?


Protects against ESD, ringing, and radiated EMI.
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