此程序是用12864液晶串行显示采集到的电压数值 注意：要将控制AD的总开关打开和基准电压、模拟电压的输入以及AD要通过掉线接中断-This procedure is 12864 serial display the collected voltage values ​ ​ Note: To control the total switch and AD reference voltage, the input analog voltage and then dropped