8位数字信号的处理，可应运于液压、水温等的测量（前提是AD转化），7段数码管显示，4个开关设置。控制两个电机（输出高电平或者低电平控制）-8-bit digital signal processing, can be shipped in the measurement of hydraulic pressure, water temperature, etc. (provided that the AD conversion), 7-segment LED display, 4 switch