/* * Author: Jon Trulson * Copyright (c) 2017 Intel Corporation. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include #include #include "uartat.hpp" #include "upm_utilities.h" using namespace std; const size_t bufferLength = 256; int main(int argc, char **argv) { //! [Interesting] string defaultDev = string("/dev/ttyUSB0"); if (argc > 1) defaultDev = string(argv[1]); cout << "Using device: " << defaultDev << endl; // Instantiate a UARTAT sensor on defaultDev at 115200 baud. upm::UARTAT *sensor = new upm::UARTAT(defaultDev, 115200); // This is a simplistic example that tries to configure the LE910, // and use it's built-in socket capabilities to connect to a // remote host, obtain a small piece of data, and return it. It's // mainly intended to show you how you can use the various AT // commands supported by the LE910 to perform simple tasks. // // You must have a valid SIM card with an active data plan for // this example to do anything interesting. // // See the LE910 AT Commands reference for full information on // what is possible with this device. The uartat driver is // intended to make it a little easier to control AT-style // devices, but is by no means a full-featured communication // infrastructure. A "real" application will probably need to be // much more sophisticated with regard to parsing, doing retries, // etc. // // For experimenting with various AT commands, try using an // interactive terminal emulator like minicom or screen. // make sure we are in command mode if (!sensor->inCommandMode()) { cout << "Not in command mode, switching..." << endl; sensor->commandMode("+++", 1000); } // flter out CR's in responses by default sensor->filterCR(true); cout << "Configuring modem..." << endl; // discard any waiting characters sensor->drain(); // reset modem sensor->command("ATZ\r"); // turn off command echo, set verbosity to 1, enable data // connection mode sensor->command("ATE0 V1 +FCLASS=0\r"); sensor->drain(); // Now issue some commands and output the results. cout << "Modem and SIM information:" << endl; std::string buffer; buffer = sensor->commandWithResponse("AT+ICCID\r", bufferLength); if (!buffer.empty()) cout << "ICCID (SIM ID): " << buffer << endl; buffer = sensor->commandWithResponse("AT+CGSN=1\r", bufferLength); if (!buffer.empty()) cout << "IMEI: " << buffer << endl; // see if we are on the network.... buffer = sensor->commandWithResponse("AT+CREG?\r", bufferLength); if (!buffer.empty()) { cout << buffer << endl; // look for "CGREG: 0,1" or "CGREG: 0,5" if (sensor->find(buffer, "CREG: 0,1") || sensor->find(buffer, "CREG: 0,5")) { cout << "Connected to the cell data network." << endl; // wait up to 5 seconds for responses now... sensor->setResponseWaitTime(5000); // setup PDP context (socket 1). An ERROR repsonse is // possible if the PDP context is already set up. sensor->command("AT#SGACT=1,1\r"); // setup a TCP socket to nist.gov and read the timestamp. cout << "Connecting to time-a.nist.gov, TCP port 13" << endl; // Wait up to 60 seconds to find the NO CARRIER // string, which will be present at the end, if the // connection succeeded and the requested data was // obtained. buffer = sensor->commandWaitFor("AT#SD=1,0,13,\"time-a.nist.gov\"\r", bufferLength, "\nNO CARRIER\n", 60000); if (!buffer.empty()) { // print out the response cout << "RESPONSE: " << endl << buffer << endl; } else { cout << "No response." << endl; } // destroy PDP context sensor->setResponseWaitTime(250); sensor->command("AT#SGACT=1,0\r"); } else { cout << "You do not appear to be connected to the network..." << endl; } } else { cout << "Error executing query\n" << endl; } // reset the modem sensor->command("ATZ\r"); cout << "Exiting" << endl; delete sensor; //! [Interesting] return 0; }