>4: The Arduino's input impedance is high enough to not load the 10K pot (it
>probably is)

Just saw this - it's possible the datasheet may *recommend* a lower 
impedance for driving the analog input, so it might be worth checking to 
make sure, but it's probably going to be around 10K max (PIC16F690 is to 
give an example), so you should be okay. Probably best to just try it and 
see how it performs, as Bob says it's unlikely to damage anything.


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