UART and TCP program by java code, it s a demo program

串口转Wi-Fi模块简称Wi-Fi模块，是将串口TTL电平转为符合Wi-Fi无线网络通信标准的嵌入式模块。无线遵循IEEE 802.11b/g/n协议，支持UART串口透明传输，用户无需了解复杂的TCP/UDP及无线网络协议，即可实现设备的快速联网。(A serial port turn wi-fi module is referred to as \"wi-fi module, is a serial TTL level to wi-fi communication standard