这是一用于压力测量显示程序，对于电压型0-5V的压力传感器进行采样，采用ADC0809，并驱动三位数码管实现压力值的显示。对于初学者或是需要的朋友，非常值得学习。-This is a display program used for pressure measurement, voltage 0-5V for the pressure sensor is sampled, using ADC0809, and drive the implementation of three digital pressure display. For the beginner or need a friend, well worth learning.