通过逐列扫描来显示汉字。

现实的为“08电气2”的字样。

拓展功能为向左滚动

由开关控制滚动

红字为字库部分，控制所要显示的是什么汉字

蓝字为分频模块，控制扫描频率与滚动速度

绿字为逐列扫描模块，-By-column scan to display Chinese characters. The reality of the "08 Electric 2" message. Scroll left to expand functions, controlled by a switch to scroll/red for the font part, control what you want to display Chinese characters, blue for the frequency module, control scroll speed scanning frequency, word-by-column scan the green module