调节电位器W1改变模拟量输入的值，在屏幕上显示显示转换好的相应的数字量。其模拟量与数字量对应关系的典型值为：0－00H ＋2.5V－80H ＋5V－FFH-Adjustment potentiometer W1 to change the value of the analog input and display the converted digital display on the screen. Analog and digital correspondence between typically :0-00H+2.5 V-80H+5 V-FFH