Scrolling text on 8 Led matrix 5x7. rolling from left to right

4个16 X 16点阵LED电子显示屏的设计 设计要求： （1）能显示图形和文字； （2）显示的图形和文字稳定清晰 （3）图形和文字有静止\左移或右移的功能.. -4 16 X 16 dot matrix LED display design design requirements: (1) can display graphics and text (2) shows the stable and clear graphics and text (3) graph