1 /*
2 * Author: Jon Trulson <jtrulson@ics.com>
3 * Copyright (c) 2015 Intel Corporation.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 #include <unistd.h>
26 #include <iostream>
27 #include <signal.h>
28 #include <stdio.h>
29 #include "grovegprs.h"
30
31 using namespace std;
32 using namespace upm;
33
printUsage(char * progname)34 void printUsage(char *progname)
35 {
36 cout << "Usage: " << progname << " [AT command]" << endl;
37 cout << endl;
38
39 cout << "If an argument is supplied on the command line, that argument is"
40 << endl;
41 cout << "sent to the module and the response is printed out." << endl;
42 cout << endl;
43 cout << "If no argument is used, then the manufacturer and the current"
44 << endl;
45 cout << "saved profiles are queried and the results printed out." << endl;
46 cout << endl;
47 cout << endl;
48 }
49
50 // simple helper function to send a command and wait for a response
sendCommand(upm::GroveGPRS * sensor,string cmd)51 void sendCommand(upm::GroveGPRS* sensor, string cmd)
52 {
53 // commands need to be terminated with a carriage return
54 cmd += "\r";
55
56 sensor->writeDataStr(cmd);
57
58 // wait up to 1 second
59 if (sensor->dataAvailable(1000))
60 {
61 cout << "Returned: " << sensor->readDataStr(1024) << endl;
62 }
63 else
64 {
65 cerr << "Timed out waiting for response" << endl;
66 }
67 }
68
69
main(int argc,char ** argv)70 int main(int argc, char **argv)
71 {
72 //! [Interesting]
73
74 // Instantiate a GroveGPRS Module on UART 0
75 upm::GroveGPRS* sensor = new upm::GroveGPRS(0);
76
77 // Set the baud rate, 19200 baud is the default.
78 if (sensor->setBaudRate(19200) != mraa::SUCCESS)
79 {
80 cerr << "Failed to set tty baud rate" << endl;
81 return 1;
82 }
83
84 printUsage(argv[0]);
85
86 if (argc > 1)
87 {
88 cout << "Sending command line argument (" << argv[1] << ")..." << endl;
89 sendCommand(sensor, argv[1]);
90 }
91 else
92 {
93 // query the module manufacturer
94 cout << "Querying module manufacturer (AT+CGMI)..." << endl;
95 sendCommand(sensor, "AT+CGMI");
96
97 sleep(1);
98
99 // query the saved profiles
100 cout << "Querying the saved profiles (AT&V)..." << endl;
101 sendCommand(sensor, "AT&V");
102
103 // A comprehensive list is available from the datasheet at:
104 // http://www.seeedstudio.com/wiki/images/7/72/AT_Commands_v1.11.pdf
105 }
106
107 //! [Interesting]
108
109 delete sensor;
110 return 0;
111 }
112