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/*
Band Management
This sketch, for the Arduino GSM shield, checks the band
currently configured in the modem and allows you to change
it.
Please check http://www.worldtimezone.com/gsm.html
Usual configurations:
Europe, Africa, Middle East: E-GSM(900)+DCS(1800)
USA, Canada, South America: GSM(850)+PCS(1900)
Mexico: PCS(1900)
Brazil: GSM(850)+E-GSM(900)+DCS(1800)+PCS(1900)
Circuit:
* GSM shield
created 12 June 2012
by Javier Zorzano, Scott Fitzgerald
This example is in the public domain.
*/
// libraries
#include <GSM.h>
// initialize the library instance
GSMBand band;
void setup()
{
// initialize serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
// Beginning the band manager restarts the modem
Serial.println("Restarting modem...");
band.begin();
Serial.println("Modem restarted.");
};
void loop()
{
// Get current band
String bandName = band.getBand(); // Get and print band name
Serial.print("Current band:");
Serial.println(bandName);
Serial.println("Want to change the band you’re on?");
String newBandName;
newBandName = askUser();
// Tell the user what we are about to do…
Serial.print("\nConfiguring band ");
Serial.println(newBandName);
// Change the band
boolean operationSuccess;
operationSuccess = band.setBand(newBandName);
// Tell the user if the operation was OK
if(operationSuccess)
{
Serial.println("Success");
}
else
{
Serial.println("Error while changing band");
}
if(operationSuccess)
{
while(true);
}
}
// This function offers the user different options
// through the Serial interface
// The user selects one
String askUser()
{
String newBand;
Serial.println("Select band:");
// Print the different options
Serial.println("1 : E-GSM(900)");
Serial.println("2 : DCS(1800)");
Serial.println("3 : PCS(1900)");
Serial.println("4 : E-GSM(900)+DCS(1800) ex: Europe");
Serial.println("5 : GSM(850)+PCS(1900) Ex: USA, South Am.");
Serial.println("6 : GSM(850)+E-GSM(900)+DCS(1800)+PCS(1900)");
// Empty the incoming buffer
while(Serial.available())
Serial.read();
// Wait for an answer, just look at the first character
while(!Serial.available());
char c= Serial.read();
if(c=='1')
newBand=GSM_MODE_EGSM;
else if(c=='2')
newBand=GSM_MODE_DCS;
else if(c=='3')
newBand=GSM_MODE_PCS;
else if(c=='4')
newBand=GSM_MODE_EGSM_DCS;
else if(c=='5')
newBand=GSM_MODE_GSM850_PCS;
else if(c=='6')
newBand=GSM_MODE_GSM850_EGSM_DCS_PCS;
else
newBand="GSM_MODE_UNDEFINED";
return newBand;
}
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