四字16*16点阵电子屏字符显示器

显示字用查表法，不占内存，用四个16*16共阳LED点阵显示，

效果：向上滚动显示字，每次四个，重复循环-Four characters 16* 16 dot matrix electronics display screen characters use the word look-up table method, do not account for memory, with a total of four 16* 16 LED dot matrix display Yang,　effect: scroll up words, every four, repeat cycle