Paul, let me help you here a little.

I see you are trying to help; all of us went through the same process that Chai98a is now going through.
I am sure when Chai98a gets more experienced, he will also help others on this forum as much as he can.


Chai98a, are you using standard 4x7 segments LED display? or it is one of those LARGE ones?

Also, why are you using 74HC ?

Based on your answer, I will post a schematic for you.

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