择城市代码

说明：  提取振动曲线的波峰和波谷值，返回对应的坐标值和峰值。(extract vibration curve peaks and trough values corresponding to the coordinates of the peak value.)

用8266取网络时间，用VFD显示，没有加ds3231(8 VFD clock , no ds3231)

与NJ系列PLC通讯上位机软件给予指令位置，与PLC 通讯并发送位置指令，伺服电机为负载(Communication with NJ series PLC upper computer software gives instruction position, communicates with PLC and sends position instruction. Servo motor is the load.)

说明：  直流电机启动模型，属于power system，仿真软件是pscad。(the start of dcmachine ，it is belonged power system,used with pcscad.)

采用ijbt作为开关器件的单相桥式电压逆变电路，通过此电路能直观的观察到我们想要获取的结果(Using ijbt as a single-phase bridge voltage inverter circuit, through which we can intuitively observe the results we want to obtain.)

单片机利用LCD1602实现多级菜单显示，效果正常(MCU uses LCD1602 to realize multi-level menu display, and the effect is normal.)

Cartoon animation effect is a kind of 3D rotation according to the position of the mouse, and with light and shadow effects, the effect is very cool.

说明：  Customize EditText instance with deletion function, which is often used in login, search and other places.

LCD1602关于屏幕字符的显示以及其功能的初始化数据传输(LCD1602 Initial Data Transfer on Display of Screen Characters and Their Functions)

一个脏矩形演示程序，在网上下载的，希望对大家有用。-a dirty rectangular Demonstration Program, the online download, I hope useful for all.