8x8 Matriz led bicolor

Using Arduino Programming Questions
1

Hello people , I'm starting to get me to the world of Arduino and my next project is to control a bicolor 8x8 LED matrix, but am having trouble by not using a shift register, someone made ??the program for this purpose without using the shift register I it facilitates

2

http://oomlout.com/8X8M/8X8M-Test.txt
http://oomlout.com/8X8M/8X8M-ScrollMessage.txt
http://www.4tronix.co.uk/arduino/8x8-LED-Matrix.php

3

but am having trouble by not using a shift register, someone made ??the program for this purpose without using the shift register I it facilitates

You need a shift register or some other form of external hardware because you have not got enough output pins on an Arduino Uno to do without them. You need 24 output pins to drive a matrix like this.

4

You need 24 output pins to drive a matrix like this.

To use both colours you need to use some external hardware such as shift registers but a Uno can muster enough pins to drive one colour.

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