I'm happy to report that I was successful in my second attempt to get the Universal Logic Gate Arduino system running and working. The problem came from a mistake in the design diagram:
I discovered the white cable was placed in the wrong slot in the design and it actually needed to be in slot 8, which I was able to discover by taking a close look at the code.
Once these changes were made, I was able to experiment with complex boolean expressions. Below shows A AND (B OR 1) simplified to A
And here you can see NOT (NOT A AND NOT B) simplified as A OR B:
It was really ratifying to get this working, especially as it involved my analysis and correction of an error in the design document.
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