A kind of dot-matrix LCD was applied to the solenoid detector as display terminal. A simple method was introduced to achieve multi-level nested menu display on the LCD screen and communicate with the micro controller through keyboards in the C language environment. The paper presented a compact and practical model of the process

and compiled some procedures used at every turn

which got across in the Weifu-E6000/L simulator successfully

and could make LCD display the real-time data accurately in the actual detection process

such as voltage

current

air pressure

which collected by solenoid detector. And this LCD can display some other related information about the solenoid detector nested

and the images are stable and clear.