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Originally Posted by Alan Anderson
Your programmers are correct. The IFI Operator Interface wants 100k pots, and the 5k ones will give you only a few counts at the extreme end of the range.
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Quote:
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Originally Posted by Biff
The 100k pot item is what the OI is designed for any other thing will give you limited range.
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Wait, are you sure about that? As I understand the OI and the analog inputs on the RC, they measure the voltage on signal pins with respect to +5 and ground. The wiper on the pot still goes from one side of the resistive material to the other, and thus runs from 0 to +5 in 270º of rotation, regardless of the actual resistance. The only difference that I can think of is that the 5k pots would draw 20x the current of the 100k pots, and that's why IFI suggests 100k. Judging by Alan's reputation, he knows what he's talking about, so I'm hesitant to disagree, lest I look like a fool. Have I completely lost my mind?
(If my understanding is indeed correct, then my theory is that the joystick is not moving the pot through its full range of motion, hence the limited range of readings. Changing the pot wouldn't help, unless you found one with a smaller range of motion. Of course, if I'm wrong, this is all moot anyway.)