Hi I am driving an 8x8 LED Matrix using two 8-bit shift registers "595" The problem is that for every led I turn on, the led above it will turn also turn on a little. (very dimly) I attached the connections diagram and a picture of the problem where I try to display the letter B. Has anybody had …

8x8 Led 595 matrix problem

system April 9, 2012, 12:13am 6

What is a UDN2981A used for? I see on the datasheet that it is an 8 channel source driver. What does that mean and what is its function within your setup?

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8x8 Led 595 matrix problem

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