I am having a hard time wiring 8x8 24 pin bi-color led matrix to the 74HC595N shift registry. I have not had a lot of time to look online and on the forum for a similar Q & A so sorry if I am repeating a question that has been asked and answered. I did find one website called Arduino Academy.com but it is Spanish and I did not understand the photos. If you could explain, show, and point me to a website that shows clearly what to do. Thanks for your help.
When driving the matrix you will be lighting one row at a time. This means that the rows might draw as much as 16 times the current of a single LED and this is usually too much for the outputs of a shift register. You can check the datasheet for your particular chip to determine the max output current. You will need some kind of driver to provide the extra current.
Thanks for telling me that before I fried something.