If you are buying pots to use as knobs read by ADC how do you decide the resistance: 5K, 10K, 50K, 100K, etc?
Presumably (because you connect the outer ends to Vcc and Gnd and it's therefore a connection between the rails) the idea is to get the highest resistance possible so the current lost is as low as possible? So is there any actual disadvantage to getting 100K+, perhaps even 1M pots?
Also, if reading the wiper position it's presumably much easier (and more accurate) to get linear rather than log pots ?
(this is why I usually prefer encoders but in this case I want the knob position to effectively show the value by its position)