Note: I'm here to see if there's an objective reason to choose one type over the other.
I've got some projects in mind that would use a microcontroller to drive one or more analog meters as displays, either with PWM data or a direct D/A drive up to 3.3V.
3.3V voltmeters are relatively had to find (one could scale to 1V though), but a bigger consideration is responsiveness (or lack thereof, with damping).
Is there an objective reason one would choose an ammeter versus a voltmeter when driving it from the output of a microcontroller?
Edit: I'm reminded that both types of meter are fundamentally current-sensitive mechanisms. That said, it may be that one type of meter is easier to convert to its complementary usage (without internally modifying it), so that is consistent with this question.
I've found a variety of projects out there using analog meters - some which use voltmeters and some which use ammeters - but I've yet to see a rationale mentioned for the choice of one over the other. Thus my question here.