1 | /*
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2 | This file is part of the GSM3 communications library for Arduino
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3 | -- Multi-transport communications platform
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4 | -- Fully asynchronous
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5 | -- Includes code for the Arduino-Telefonica GSM/GPRS Shield V1
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6 | -- Voice calls
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7 | -- SMS
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8 | -- TCP/IP connections
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9 | -- HTTP basic clients
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10 |
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11 | This library has been developed by Telefónica Digital - PDI -
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12 | - Physical Internet Lab, as part as its collaboration with
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13 | Arduino and the Open Hardware Community.
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14 |
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15 | September-December 2012
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16 |
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17 | This library is free software; you can redistribute it and/or
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18 | modify it under the terms of the GNU Lesser General Public
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19 | License as published by the Free Software Foundation; either
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20 | version 2.1 of the License, or (at your option) any later version.
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21 |
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22 | This library is distributed in the hope that it will be useful,
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23 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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24 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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25 | Lesser General Public License for more details.
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26 |
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27 | You should have received a copy of the GNU Lesser General Public
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28 | License along with this library; if not, write to the Free Software
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29 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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30 |
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31 | The latest version of this library can always be found at
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32 | https://github.com/BlueVia/Official-Arduino
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33 | */
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34 |
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35 | #include <GSM3ShieldV1ScanNetworks.h>
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36 |
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37 | GSM3ShieldV1ScanNetworks::GSM3ShieldV1ScanNetworks(bool trace): modem(trace)
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38 | {
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39 | }
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40 |
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41 | GSM3_NetworkStatus_t GSM3ShieldV1ScanNetworks::begin()
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42 | {
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43 | modem.begin();
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44 | modem.restartModem();
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45 | // check modem response
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46 | modem.writeModemCommand("AT", 1000);
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47 | modem.writeModemCommand("ATE0", 1000);
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48 | return IDLE;
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49 | }
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50 |
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51 | String GSM3ShieldV1ScanNetworks::getCurrentCarrier()
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52 | {
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53 | String modemResponse = modem.writeModemCommand("AT+COPS?", 2000);
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54 |
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55 | // Parse and check response
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56 | char res_to_split[modemResponse.length()];
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57 | modemResponse.toCharArray(res_to_split, modemResponse.length());
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58 | if(strstr(res_to_split,"ERROR") == NULL){
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59 | // Tokenizer
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60 | char *ptr_token;
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61 | ptr_token = strtok(res_to_split, "\"");
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62 | ptr_token = strtok(NULL, "\"");
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63 | String final_result = ptr_token;
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64 | return final_result;
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65 | }else{
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66 | return String(NULL);
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67 | }
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68 | }
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69 |
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70 | String GSM3ShieldV1ScanNetworks::getSignalStrength()
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71 | {
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72 | String modemResponse = modem.writeModemCommand("AT+CSQ", 2000);
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73 | char res_to_split[modemResponse.length()];
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74 | modemResponse.toCharArray(res_to_split, modemResponse.length());
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75 | if((strstr(res_to_split,"ERROR") == NULL) | (strstr(res_to_split,"99") == NULL)){
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76 | // Tokenizer
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77 | char *ptr_token;
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78 | ptr_token = strtok(res_to_split, ":");
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79 | ptr_token = strtok(NULL, ":");
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80 | ptr_token = strtok(ptr_token, ",");
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81 | String final_result = ptr_token;
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82 | final_result.trim();
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83 | return final_result;
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84 | }else{
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85 | return String(NULL);
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86 | }
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87 | }
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88 |
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89 | String GSM3ShieldV1ScanNetworks::readNetworks()
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90 | {
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91 | String modemResponse = modem.writeModemCommand("AT+COPS=?",20000);
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92 | String result;
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93 | bool inQuotes=false;
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94 | int quoteCounter=0;
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95 | for(unsigned int i=0; i<modemResponse.length();i++)
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96 | {
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97 | if(modemResponse[i]=='"')
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98 | {
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99 | if(!inQuotes)
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100 | {
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101 | inQuotes=true;
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102 | quoteCounter++;
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103 | if(quoteCounter==1)
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104 | result+="> ";
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105 | }
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106 | else
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107 | {
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108 | inQuotes=false;
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109 | if(quoteCounter==3)
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110 | quoteCounter=0;
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111 | if(quoteCounter==1)
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112 | result+="\n";
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113 |
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114 | }
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115 | }
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116 | else
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117 | {
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118 | if(inQuotes&&(quoteCounter==1))
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119 | {
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120 | result+=modemResponse[i];
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121 | }
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122 | }
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123 | }
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124 | return result;
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125 | }
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126 |
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