GSM Scan Networks

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1GSM gsmAccess;
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3GSMScanner scannerNetworks;
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5GSMModem modemTest;

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1String IMEI = "";
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3String errortext = "ERROR";

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1void setup(){
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3  Serial.begin(9600);
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5  Serial.println("GSM networks scanner");
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7  scannerNetworks.begin();

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1boolean notConnected = true;

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1while(notConnected)
2
3  {
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5    if(gsmAccess.begin(PINNUMBER)==GSM_READY)
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7      notConnected = false;
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9    else
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11    {
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13      Serial.println("Not connected");
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15      delay(1000);
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17    }
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19  }

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1Serial.print("Modem IMEI: ");
2
3  IMEI = modemTest.getIMEI();
4
5  IMEI.replace("\n","");
6
7  if(IMEI != NULL)
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9    Serial.println(IMEI);

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1Serial.println("Scanning available networks. May take some seconds.");
2
3  Serial.println(scannerNetworks.readNetworks());

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1Serial.print("Current carrier: ");
2
3  Serial.println(scannerNetworks.getCurrentCarrier());
4
5  Serial.print("Signal Strength: ");
6
7  Serial.print(scannerNetworks.getSignalStrength());
8
9  Serial.println(" [0-31]");

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1/*
2
3 GSM Scan Networks
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5 This example prints out the IMEI number of the modem,
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7 then checks to see if it's connected to a carrier. If so,
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9 it prints the phone number associated with the card.
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11 Then it scans for nearby networks and prints out their signal strengths.
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13 Circuit:
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15 * GSM shield
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17 * SIM card
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19 Created 8 Mar 2012
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21 by Tom Igoe, implemented by Javier Carazo
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23 Modified 4 Feb 2013
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25 by Scott Fitzgerald
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27 http://www.arduino.cc/en/Tutorial/GSMToolsGsmScanNetworks
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29 This example code is part of the public domain
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31 */
32
33// libraries
34#include <GSM.h>
35
36// PIN Number
37#define PINNUMBER ""
38
39// initialize the library instance
40
41GSM gsmAccess;     // include a 'true' parameter to enable debugging
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43GSMScanner scannerNetworks;
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45GSMModem modemTest;
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47// Save data variables
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49String IMEI = "";
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51// serial monitor result messages
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53String errortext = "ERROR";
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55void setup() {
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57  // initialize serial communications and wait for port to open:
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59  Serial.begin(9600);
60
61  while (!Serial) {
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63    ; // wait for serial port to connect. Needed for Leonardo only
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65  }
66
67  Serial.println("GSM networks scanner");
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69  scannerNetworks.begin();
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71  // connection state
72
73  bool notConnected = true;
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75  // Start GSM shield
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77  // If your SIM has PIN, pass it as a parameter of begin() in quotes
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79  while (notConnected) {
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81    if (gsmAccess.begin(PINNUMBER) == GSM_READY) {
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83      notConnected = false;
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85    } else {
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87      Serial.println("Not connected");
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89      delay(1000);
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91    }
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93  }
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95  // get modem parameters
96
97  // IMEI, modem unique identifier
98
99  Serial.print("Modem IMEI: ");
100
101  IMEI = modemTest.getIMEI();
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103  IMEI.replace("\n", "");
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105  if (IMEI != NULL) {
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107    Serial.println(IMEI);
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109  }
110}
111
112void loop() {
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114  // scan for existing networks, displays a list of networks
115
116  Serial.println("Scanning available networks. May take some seconds.");
117
118  Serial.println(scannerNetworks.readNetworks());
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120  // currently connected carrier
121
122  Serial.print("Current carrier: ");
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124  Serial.println(scannerNetworks.getCurrentCarrier());
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126  // returns strength and ber
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128  // signal strength in 0-31 scale. 31 means power > 51dBm
129
130  // BER is the Bit Error Rate. 0-7 scale. 99=not detectable
131
132  Serial.print("Signal Strength: ");
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134  Serial.print(scannerNetworks.getSignalStrength());
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136  Serial.println(" [0-31]");
137
138}