mega16做的4*5矩阵按键程序，键值送至1602液晶显示，同时更新了proteus仿真，可在不搭建硬件平台的基础上实现调试及仿真，-mega16 do 4* 5 matrix key program, key sent to the LCD 1602, and updated the proteus simulation, you can not build a hardware platform based on the debugging and simulation,