> yes those are empty but voltmeter (which is going to measure the
> output) probes will be consant.This is why I said that the output
> must be at one pin

One PIC pin is just one point in the circuit. Would the output of an
op-amp (buffering a DAC) also not count as 'one pin' ?

You'll have to excuse me - I don't see the importance of the voltage
being on a PIC pin specifically

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