包括开关量输入输出，模拟量的输入输出，显示电路，实现对小键盘的管理，及对6个LED显示块的控制，编制程序实现用数码管显示AD转换值，采样周期为0.5秒，最终系统联调

-Including the amount of input and output switching, analog input and output, display circuit, the management of small keyboard and LED display on the six blocks of control and programming to achieve with digital LED display AD conversion values, the sampling period is 0.5 seconds, the final System FBI