GroveGPRS Class Reference

API for the Grove GPRS Module. More...

Detailed Description

• ID: grovegprs
• Name: Grove GPRS Module
• Category: wifi
• Manufacturer: seeed
• Connection: uart
• Link: http://www.seeedstudio.com/wiki/GPRS_Shield_V2.0

The driver was tested with the Grove GPRS Module, V2. It's a GSM GPRS module based on the SIM900. This module uses a standard 'AT' command set. See the datasheet for a full list of available commands and their possible responses:

http://www.seeedstudio.com/wiki/images/7/72/AT_Commands_v1.11.pdf

It is connected via a UART at 19200 baud.

Public Member Functions
synchronized void	delete ()
	GroveGPRS (int uart)
boolean	dataAvailable (long millis)
int	readData (String buffer, long len)
String	readDataStr (int len)
int	writeData (String buffer, long len)
int	writeDataStr (String data)
int	setBaudRate (int baud)
int	setBaudRate ()

Constructor & Destructor Documentation

GroveGPRS

(

int

uart

)

GroveGPRS object constructor

Parameters

uart	Default UART to use (0 or 1). Default is 0.

Member Function Documentation

boolean dataAvailable

(

long

millis

)

Checks to see if there is data available for reading

Parameters

millis

Number of milliseconds to wait; 0 means no waiting

Returns

true if there is data available for reading

int readData	(	String	buffer,
		long	len
	)

Reads any available data into a user-supplied buffer. Note: the call blocks until data is available for reading. Use dataAvailable() to determine whether there is data available beforehand, to avoid blocking.

Parameters

buffer	Buffer to hold the data read
len	Length of the buffer

Returns

Number of bytes read

String readDataStr

(

int

len

)

Reads any available data and returns it in a std::string. Note: the call blocks until data is available for reading. Use dataAvailable() to determine whether there is data available beforehand, to avoid blocking.

Parameters

len	Maximum length of the data to be returned

Returns

Number of bytes read

int setBaudRate

(

int

baud

)

Sets the baud rate for the device. The default is 19200.

Parameters

baud	Desired baud rate.

Returns

true if successful

int writeData	(	String	buffer,
		long	len
	)

Writes the data in the buffer to the device. If you are writing a command, be sure to terminate it with a carriage return ()

Parameters

buffer	Buffer to hold the data to write
len	Length of the buffer

Returns

Number of bytes written

int writeDataStr

(

String

data

)

Writes the std:string data to the device. If you are writing a command, be sure to terminate it with a carriage return ()

Parameters

data	Buffer to write to the device

Returns

Number of bytes written

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The documentation for this class was generated from the following file:

• /var/lib/jenkins/workspace/upm-doc-stable/build-33/src/grovegprs/GroveGPRS.java