@ronalex4203 If I typed 330 ohms somewhere than it was a typo. I understand what you are showing me, this isn't quite the same thing. I want to implem...

@will That's 33 OHMS. 31.1 OHMS is close enough in my opinion. The polarity thing is my mistake, sorry. You aren't getting it. That would mean I hav...

@will Well, seeing as this has worked in countless other demonstrations I've seen, I assumed that setting pins to INPUT worked. I guess not. So unless...

Here's an example. The D2 cannot be replaced with ground, as it will be used by another pin connected to that column later. Unless someone knows a way...

@ronalex4203 As mentioned in the above post, the code has been stripped down here. Yes, there will be additional connections being made to this termin...

@will The D2 will not always be high. When something else is using that terminal D2 will be INPUT. That's the idea, at least. The pinModes are outside...

@davee Thanks much. I've stripped this down as far as I can to show what is actually happening. I'm trying to measure the value of an "unknown" resist...

Actually I figured this one out. I used a different series of resistors, 1K, 10K, 100K, and 1M and now the returned values seem to be ok. Weird!