既昨天的430串口程序后又添加了几个程序模块。3*4的矩阵键盘扫描以及通过锁存器IO口复用来驱动数码管。功能是这样：先对按键进行消抖，然后判断键值通过数码管显示通过串口发送出去。-Both procedures after yesterday' s 430 serial port to add a few program modules. 3* 4 matrix keyboard scanning and recovery through the latch to drive the di

点阵LED显示屏节目更新程序,能直接将汉字的模通过串口向单片机控制的点阵LED传送，并能实现左移、右移、静态显示、时间更新等基本控制命令。-LED dot matrix display program updates can be molded directly to the characters sent by the serial dot matrix LED to the MCU control, and can achieve left, right, static display, t

LED点阵显示图形设计，单片机课设，显示星星，圆形心形-LED dot matrix display graphic design, MCU class-based, show stars, heart-shaped round