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GSM : GSM class
begin()
Description
Connects to the GSM network identified on the SIM card.
Syntax
gsm.begin()
gsm.begin(pin)
gsm.begin(pin, restart)
gsm.begin(pin, restart, sync)
Parameters
- pin : character array with the PIN to access a SIM card (default = 0)
- restart : boolean, determines whether to restart modem or not (default= true)
- sync : boolean, synchronous (true, default) or asynchronous (false) mode
Returns
char : 0 if asynchronous. If synchronous, returns status : ERROR, IDLE, CONNECTING, GSM_READY, GPRS_READY, TRANSPARENT_CONNECTED
Example
#include <GSM.h>
#define PINNUMBER ""
GSM gsm; // include a 'true' parameter for debug enabled
void setup()
{
// initialize serial communications
Serial.begin(9600);
// connection state
boolean notConnected = true;
// Start GSM shield
// If your SIM has PIN, pass it as a parameter of begin() in quotes
while(notConnected)
{
if(gsm.begin(PINNUMBER)==GSM_READY)
notConnected = false;
else
{
Serial.println("Not connected");
delay(1000);
}
}
Serial.println("GSM initialized");
}
void loop()
{
// once connected do something interesting
}
#define PINNUMBER ""
GSM gsm; // include a 'true' parameter for debug enabled
void setup()
{
// initialize serial communications
Serial.begin(9600);
// connection state
boolean notConnected = true;
// Start GSM shield
// If your SIM has PIN, pass it as a parameter of begin() in quotes
while(notConnected)
{
if(gsm.begin(PINNUMBER)==GSM_READY)
notConnected = false;
else
{
Serial.println("Not connected");
delay(1000);
}
}
Serial.println("GSM initialized");
}
void loop()
{
// once connected do something interesting
}
See Also
Corrections, suggestions, and new documentation should be posted to the Forum.
The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.
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