说明：  8*8 LED 点阵屏幕显示全屏下滚2次及上滚2次,从左到右,从右到左各收缩1次.从中间扩展到四角,从四角收缩到中心,然后再显示:"祖国您好 合肥市 邦森公司 国庆" 作为LED点阵练习,简单易懂.
(8* 8 LED dot-matrix display full-screen under the roll-on roll 2 times and 2 times, from left to right, from right to left each contraction 1. From the middle extended to the four corners, from the contraction to the center square, and then displays: " Fatherland Hello, Hefei, Bunsen' s National Day" as a LED dot matrix exercise, easy to understand.)