Shane Nelson Wrote:


> > I'm also trying to use this method on a project and am having the
> > same types of problems.  Lots of drift, and maybe some noise. Not
> > sure what's causing it or how to cancel it's effect.   The
> > thought crossed my mind to take like, 10 measurements for every
> > display update, and average them out.

I was able to get this to work with more like 100 measurements over 1
second.  This was in a situation that did not have much drift.

> > I'm also investigating the posibility of using a PIC with an a/d
> > on it and doing it that way. I wonder if the a/d will have the
> > same problems though?

You'll have less problems, I am predicting.  Use A/D if you have the
money.  If it's just a one time project then definitely do it that
way.


Best Regards,

Lawrence Lile