wei zou / GPRSInterface

a library to use GPRS like ethernet or wifi, which makes it possible to connect to the internet with your GPRS module

Dependents:   Seeed_GPRS_Library_HelloWorld Seeed_GPRS_Xively_HelloWorld Seeed_ARCH_GPRS_V2_Xively_HelloWorld Seeed_ARCH_GPRS_V2_ThingSpeak_HelloWorld ... more

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  1. API

Import libraryGPRSInterface

a library to use GPRS like ethernet or wifi, which makes it possible to connect to the internet with your GPRS module

Last commit 06 May 2014 by wei zou

API

Import library
GPRSInterface - GPRSInterface Class Reference

Public Member Functions

GPRSInterface (PinName tx, PinName rx, int baudRate, const char *apn, const char *userName=NULL, const char *passWord=NULL)
Constructor.
int init ()
Initialize the interface(no connection at this point).
int connect ()
Connect to the network and get IP address.
int disconnect ()
Disconnect with the network.
char * getIPAddress ()
Get IP address.
bool join (void)
Connect the GPRS module to the network.
bool close (int socket)
Close a tcp connection.
bool connect (int socket, Protocol ptl, const char *host, int port, int timeout=DEFAULT_TIMEOUT)
Open a tcp/udp connection with the specified host on the specified port.
bool setProtocol (int socket, Protocol p)
Set the protocol (UDP or TCP)
void reset ()
Reset the GPRS module.
bool readable (void)
check if GPRS module is readable or not
int wait_readable (int socket, int wait_time)
wait a few time to check if GPRS module is readable or not
int wait_writeable (int socket, int req_size)
wait a few time to check if GPRS module is writeable or not
bool is_connected (int socket)
Check if a tcp link is active.
int send (int socket, const char *str, int len)
send data to socket
int recv (int socket, char *buf, int len)
read data from socket
bool gethostbyname (const char *host, uint32_t *ip)
convert the host to ip

Static Public Member Functions

static GPRS * getInstance ()
get instance of GPRS class

Protected Member Functions

char readByte (void)
read one byte from serialModem
int readBuffer (char *buffer, int count, unsigned int timeOut)
read from Modem module and save to buffer array
void cleanBuffer (char *buffer, int count)
clean Buffer
void sendCmd (const char *cmd)
send AT command to Modem module
void sendATTest (void)
send "AT" to Modem module
bool respCmp (const char *resp, unsigned int len, unsigned int timeout)
compare the response from GPRS module with a string
int waitForResp (const char *resp, unsigned int timeout, DataType type)
check Modem module response before time out
int sendCmdAndWaitForResp (const char *data, const char *resp, unsigned timeout, DataType type)
send AT command to GPRS module and wait for correct response
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