功能简介：

该实验使用上一个实验的实验程序测量外接电压值。下载好程序后，将外接电压连接到ADC IN的2号引脚上，数码管上显示的即为当前外接电压的电压值。外接电压应在0~5V之间，过大会烧坏ADC0832芯片，请务必注意-Features:

　　 The experimental use of an experimental measurement of an external voltage experimental procedures. Download a good program, an external voltage is connected to the ADC IN pin No. 2, the digital display on an external voltage is the voltage of the current value. External voltage should be between 0 ~ 5V, burn ADC0832 chips over the General Assembly, be sure to note