GSM PIN Management

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1String user_input = "";
2
3boolean auth = false;
4
5String oktext = "OK";
6
7String errortext = "ERROR";

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1void setup(){
2
3  Serial.begin(9600);
4
5  Serial.println("Change PIN example\n");
6
7  PINManager.begin();

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1while(!auth){
2
3    int pin_query = PINManager.isPIN();
4
5    if(pin_query == 1)
6
7    {

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1Serial.print("Enter PIN code: ");
2
3      user_input = readSerial();

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1if(PINManager.checkPIN(user_input) == 0)
2
3      {
4
5        auth = true;
6
7        PINManager.setPINUsed(true);
8
9        Serial.println(oktext);
10
11      }
12
13      else
14
15      {
16
17        Serial.println("Incorrect PIN. Remember that you have 3 opportunities.");
18
19      }
20
21    }

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1else if(pin_query == -1)
2
3    {
4
5      Serial.println("PIN locked. Enter PUK code: ");
6
7      String puk = readSerial();
8
9      Serial.print("Now, enter a new PIN code: ");
10
11      user_input = readSerial();
12
13      if(PINManager.checkPUK(puk, user_input) == 0)
14
15      {
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17        auth = true;
18
19        PINManager.setPINUsed(true);
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21        Serial.println(oktext);
22
23      }
24
25      else
26
27      {
28
29        Serial.println("Incorrect PUK or invalid new PIN. Try again!.");
30
31      }
32
33    }

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1else if(pin_query == -2)
2
3    {
4
5      Serial.println("PIN & PUK locked. Use PIN2/PUK2 in a mobile phone.");
6
7      while(true);
8
9    }

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1else
2
3    {
4
5      // SIM does not requires authentication
6
7      Serial.println("No pin necessary.");
8
9      auth = true;
10
11    }
12
13  }

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1Serial.print("Checking register in GSM network...");
2
3  if(PINManager.checkReg() == 0)
4
5    Serial.println(oktext);
6
7  else if(PINManager.checkReg() == 1)
8
9    Serial.println("ROAMING " + oktext);
10
11  else
12
13  {
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15    Serial.println(errortext);
16
17    while(true);
18
19  }
20}

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1String readSerial()
2{

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1String text = "";
2
3  while(1)
4
5  {
6
7    while (Serial.available() > 0)
8
9    {
10
11      char inChar = Serial.read();
12
13      if (inChar == '\n')
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15      {
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17        return text;
18
19      }
20
21      if(inChar!='\r')
22
23        text += inChar;
24
25    }
26
27  }
28}

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1void loop()
2{
3
4  Serial.println("Choose an option:\n1 - On/Off PIN.");
5
6  if(PINManager.getPINUsed())
7
8    Serial.println("2 - Change PIN.");
9
10  String user_op = readSerial();
11
12  if(user_op == "1")
13
14  {
15
16    Serial.println("Enter your PIN code:");
17
18    user_input = readSerial();
19
20    PINManager.switchPIN(user_input);
21
22  }
23
24  else if(user_op == "2" & PINManager.getPINUsed())
25
26  {
27
28    Serial.println("Enter your actual PIN code:");
29
30    String oldPIN = readSerial();
31
32    Serial.println("Now, enter your new PIN code:");
33
34    String newPIN = readSerial();
35
36    PINManager.changePIN(oldPIN, newPIN);
37
38  }
39
40  else
41
42  {
43
44    Serial.println("Incorrect option. Try again!.");
45
46  }
47
48  delay(1000);
49}

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1/*
2
3 Band Management
4
5 This sketch, for the Arduino GSM shield, checks the band
6
7 currently configured in the modem and allows you to change
8
9 it.
10
11 Please check http://www.worldtimezone.com/gsm.html
12
13 Usual configurations:
14
15 Europe, Africa, Middle East: E-GSM(900)+DCS(1800)
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17 USA, Canada, South America: GSM(850)+PCS(1900)
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19 Mexico: PCS(1900)
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21 Brazil: GSM(850)+E-GSM(900)+DCS(1800)+PCS(1900)
22
23 Circuit:
24
25 * GSM shield
26
27 created 12 June 2012
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29 by Javier Zorzano, Scott Fitzgerald
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31 This example is in the public domain.
32
33 */
34
35// libraries
36#include <GSM.h>
37
38// initialize the library instance
39
40GSMBand band;
41
42void setup() {
43
44  // initialize serial communications and wait for port to open:
45
46  Serial.begin(9600);
47
48  while (!Serial) {
49
50    ; // wait for serial port to connect. Needed for Leonardo only
51
52  }
53
54  // Beginning the band manager restarts the modem
55
56  Serial.println("Restarting modem...");
57
58  band.begin();
59
60  Serial.println("Modem restarted.");
61
62};
63
64void loop() {
65
66  // Get current band
67
68  String bandName = band.getBand(); // Get and print band name
69
70  Serial.print("Current band:");
71
72  Serial.println(bandName);
73
74  Serial.println("Want to change the band you're on?");
75
76  String newBandName;
77
78  newBandName = askUser();
79
80  // Tell the user what we are about to do...
81
82  Serial.print("\nConfiguring band ");
83
84  Serial.println(newBandName);
85
86  // Change the band
87
88  bool operationSuccess;
89
90  operationSuccess = band.setBand(newBandName);
91
92  // Tell the user if the operation was OK
93
94  if (operationSuccess) {
95
96    Serial.println("Success");
97
98  } else {
99
100    Serial.println("Error while changing band");
101
102  }
103
104  if (operationSuccess) {
105
106    while (true);
107
108  }
109}
110
111// This function offers the user different options
112// through the Serial interface
113// The user selects one
114
115String askUser() {
116
117  String newBand;
118
119  Serial.println("Select band:");
120
121  // Print the different options
122
123  Serial.println("1 : E-GSM(900)");
124
125  Serial.println("2 : DCS(1800)");
126
127  Serial.println("3 : PCS(1900)");
128
129  Serial.println("4 : E-GSM(900)+DCS(1800) ex: Europe");
130
131  Serial.println("5 : GSM(850)+PCS(1900) Ex: USA, South Am.");
132
133  Serial.println("6 : GSM(850)+E-GSM(900)+DCS(1800)+PCS(1900)");
134
135  // Empty the incoming buffer
136
137  while (Serial.available()) {
138
139    Serial.read();
140
141  }
142
143  // Wait for an answer, just look at the first character
144
145  while (!Serial.available());
146
147  char c = Serial.read();
148
149  if (c == '1') {
150
151    newBand = GSM_MODE_EGSM;
152
153  } else if (c == '2') {
154
155    newBand = GSM_MODE_DCS;
156
157  } else if (c == '3') {
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159    newBand = GSM_MODE_PCS;
160
161  } else if (c == '4') {
162
163    newBand = GSM_MODE_EGSM_DCS;
164
165  } else if (c == '5') {
166
167    newBand = GSM_MODE_GSM850_PCS;
168
169  } else if (c == '6') {
170
171    newBand = GSM_MODE_GSM850_EGSM_DCS_PCS;
172
173  } else {
174
175    newBand = "GSM_MODE_UNDEFINED";
176
177  }
178
179  return newBand;
180}