在8X8　LED点阵上显示柱形，让其先从左到右平滑移动三次，其次从右到左平滑移动三次，再次从上到下平滑移动三次，最后从下到上平滑移动三次，如此循环下去。 -In the 8X8 LED dot matrix display column, allowed to move smoothly from left to right the first three times, followed by a smooth move from right to left three times, once

led moving message display using RS-232