The 8×8 dot matrix consists of 64 LEDs with 16 pins corresponding to eight columns of anodes and eight rows of cathodes. The label on one side of an 8×8 dot matrix display usually indicates the side containing pins 1 to 8 (left to right) with the other side containing pins 9 to 16 (right to left), as shown in Figure 7-1.
Pin numbering of 8x8 dot matrix display
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