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96 lines
2.2 KiB
C++
96 lines
2.2 KiB
C++
/*
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GSM Scan Networks
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This example prints out the IMEI number of the modem,
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then checks to see if it's connected to a carrier. If so,
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it prints the phone number associated with the card.
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Then it scans for nearby networks and prints out their signal strengths.
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Circuit:
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* GSM shield
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* SIM card
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Created 8 Mar 2012
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by Tom Igoe, implemented by Javier Carazo
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Modified 4 Feb 2013
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by Scott Fitzgerald
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http://www.arduino.cc/en/Tutorial/GSMToolsGsmScanNetworks
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This example code is part of the public domain
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*/
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// libraries
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#include <GSM.h>
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// PIN Number
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#define PINNUMBER ""
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// initialize the library instance
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GSM gsmAccess; // include a 'true' parameter to enable debugging
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GSMScanner scannerNetworks;
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GSMModem modemTest;
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// Save data variables
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String IMEI = "";
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// serial monitor result messages
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String errortext = "ERROR";
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void setup()
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{
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// initialize serial communications and wait for port to open:
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Serial.begin(9600);
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while (!Serial) {
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; // wait for serial port to connect. Needed for Leonardo only
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}
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Serial.println("GSM networks scanner");
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scannerNetworks.begin();
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// connection state
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boolean notConnected = true;
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// Start GSM shield
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// If your SIM has PIN, pass it as a parameter of begin() in quotes
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while (notConnected)
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{
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if (gsmAccess.begin(PINNUMBER) == GSM_READY)
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notConnected = false;
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else
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{
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Serial.println("Not connected");
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delay(1000);
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}
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}
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// get modem parameters
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// IMEI, modem unique identifier
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Serial.print("Modem IMEI: ");
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IMEI = modemTest.getIMEI();
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IMEI.replace("\n", "");
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if (IMEI != NULL)
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Serial.println(IMEI);
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}
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void loop()
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{
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// scan for existing networks, displays a list of networks
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Serial.println("Scanning available networks. May take some seconds.");
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Serial.println(scannerNetworks.readNetworks());
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// currently connected carrier
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Serial.print("Current carrier: ");
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Serial.println(scannerNetworks.getCurrentCarrier());
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// returns strength and ber
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// signal strength in 0-31 scale. 31 means power > 51dBm
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// BER is the Bit Error Rate. 0-7 scale. 99=not detectable
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Serial.print("Signal Strength: ");
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Serial.print(scannerNetworks.getSignalStrength());
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Serial.println(" [0-31]");
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}
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