The main function
1.To achive the transparent data transmission between GPRS and serial port,received text information by serial port and send via GPRS,and output via serial if received GPRS data.
2.Configuration parameters for remote server IP/COM port and so on via SMS.
3.Baud Rate range:9600-115200,adjustable.
4.Cooperate with any serial port led cotroller for LongGreat's brand,like TF-FU,to come ture alter program via GPRS.