GSM Web Client

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1#define GPRS_APN       "GPRS_APN"
2#define GPRS_LOGIN     "login"
3#define GPRS_PASSWORD  "password"

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1GSMClient client;
2
3GPRS gprs;
4
5GSM gsmAccess;

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1char server[] = "arduino.cc";
2char path[] = "/";
3int port = 80;

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1void setup(){
2
3  Serial.begin(9600);
4
5  Serial.println("Starting Arduino web client.");

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1boolean notConnected = true;

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1while(notConnected)
2
3  {
4
5    if(gsmAccess.begin(PINNUMBER)==GSM_READY)
6
7        (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD)==GPRS_READY))
8
9      notConnected = false;
10
11    else
12
13    {
14
15      Serial.println("Not connected");
16
17      delay(1000);
18
19    }
20
21  }

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1if (client.connect(server, port))
2
3  {
4
5    Serial.println("connected");
6
7    client.print("GET ");
8
9    client.print(path);
10
11    client.println(" HTTP/1.0");
12
13    client.println();
14
15  }

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1else
2
3  {
4
5    Serial.println("connection failed");
6
7  }
8}

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1if (client.available())
2
3  {
4
5    char c = client.read();
6
7    Serial.print(c);
8
9  }

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1if (!client.available() && !client.connected())
2
3  {
4
5    Serial.println();
6
7    Serial.println("disconnecting.");
8
9    client.stop();
10
11    // do nothing forevermore:
12
13    for(;;)
14
15      ;
16
17  }
18}

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1/*
2
3  Web client
4
5 This sketch connects to a website through a GSM shield. Specifically,
6
7 this example downloads the URL "http://arduino.tips/asciilogo.txt" and
8
9 prints it to the Serial monitor.
10
11 Circuit:
12
13 * GSM shield attached to an Arduino
14
15 * SIM card with a data plan
16
17 created 8 Mar 2012
18
19 by Tom Igoe
20
21 http://www.arduino.cc/en/Tutorial/GSMExamplesWebClient
22
23 */
24
25// libraries
26#include <GSM.h>
27
28// PIN Number
29#define PINNUMBER ""
30
31// APN data
32#define GPRS_APN       "GPRS_APN" // replace your GPRS APN
33#define GPRS_LOGIN     "login"    // replace with your GPRS login
34#define GPRS_PASSWORD  "password" // replace with your GPRS password
35
36// initialize the library instance
37
38GSMClient client;
39
40GPRS gprs;
41
42GSM gsmAccess;
43
44// URL, path & port (for example: arduino.cc)
45char server[] = "arduino.tips";
46char path[] = "/asciilogo.txt";
47int port = 80; // port 80 is the default for HTTP
48
49void setup() {
50
51  // initialize serial communications and wait for port to open:
52
53  Serial.begin(9600);
54
55  while (!Serial) {
56
57    ; // wait for serial port to connect. Needed for native USB port only
58
59  }
60
61  Serial.println("Starting Arduino web client.");
62
63  // connection state
64
65  bool notConnected = true;
66
67  // After starting the modem with GSM.begin()
68
69  // attach the shield to the GPRS network with the APN, login and password
70
71  while (notConnected) {
72
73    if ((gsmAccess.begin(PINNUMBER) == GSM_READY) &
74
75        (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD) == GPRS_READY)) {
76
77      notConnected = false;
78
79    } else {
80
81      Serial.println("Not connected");
82
83      delay(1000);
84
85    }
86
87  }
88
89  Serial.println("connecting...");
90
91  // if you get a connection, report back via serial:
92
93  if (client.connect(server, port)) {
94
95    Serial.println("connected");
96
97    // Make a HTTP request:
98
99    client.print("GET ");
100
101    client.print(path);
102
103    client.println(" HTTP/1.1");
104
105    client.print("Host: ");
106
107    client.println(server);
108
109    client.println("Connection: close");
110
111    client.println();
112
113  } else {
114
115    // if you didn't get a connection to the server:
116
117    Serial.println("connection failed");
118
119  }
120}
121
122void loop() {
123
124  // if there are incoming bytes available
125
126  // from the server, read them and print them:
127
128  if (client.available()) {
129
130    char c = client.read();
131
132    Serial.print(c);
133
134  }
135
136  // if the server's disconnected, stop the client:
137
138  if (!client.available() && !client.connected()) {
139
140    Serial.println();
141
142    Serial.println("disconnecting.");
143
144    client.stop();
145
146    // do nothing forevermore:
147
148    for (;;)
149
150      ;
151
152  }
153}