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Topic: Help testing an LED array (Read 901 times) previous topic - next topic


I recently got an 8x8 Green LED array and I can't seem to control it well. Anybody wanna help?

I don't understand pins control the rows and which ones control the columns.  Like which was is up and which way is down.
The diagram of the rows and columns is understandable but i can't tell which one is pin 13 and which one is pin 9 since the pins are on opposing sides of the matrix
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