I apologize. I failed to mention the LM339 comparator driving the PIC IO.
It is still a simple solution. I built the one for my water system back in my basic stamp days. Still working.
Again I am sorry for the misleading post.
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I apologize. I failed to mention the LM339 comparator driving the PIC IO.
It is still a simple solution. I built the one for my water system back in my basic stamp days. Still working.
Again I am sorry for the misleading post.
Dave
Always wear safety glasses while programming.
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