I received my shift register ICs, but didn't get to play with them tonight because I'm still wrestling with the red LEDs. The 220k resisters are perfect for the blue and green, but the red doesn't seem to ever dim or it is too dim to see. I guess I have to break down and calculate the appropriate resister and then if I don't have the right one in my, rather large, stock of resisters, I'll have to buy the right one.
I did tweak the code a bit for the 4x4 section of the matrix that I'm playing with to get brighter colors but there is still a notable flicker.
Tomorrow being Friday, I can pull an all-nighter and accomplish something, I hope.
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