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- /*jslint node:true, vars:true, bitwise:true, unparam:true */
- /*jshint unused:true */
-
- /*
- * Author: Jon Trulson <jtrulson@ics.com>
- * Copyright (c) 2015 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.
- */
-
-
- var sensorObj = require('jsupm_grovegprs');
-
-
- /************** Functions **************/
- function printUsage(progname)
- {
- var outputStr = "Usage: " + progname + " [AT command]\n\n" +
- "If an argument is supplied on the command line, that argument is\n" +
- "sent to the module and the response is printed out.\n\n" +
- "If no argument is used, then the manufacturer and the current\n" +
- "saved profiles are queried and the results printed out.\n\n"
- console.log(outputStr);
- }
-
- // simple helper function to send a command and wait for a response
- function sendCommand(sensor, cmd, callback)
- {
- // commands need to be terminated with a carriage return
- cmd += "\r";
- sensor.writeDataStr(cmd);
-
- // wait up to 1 second
- if (sensor.dataAvailable(1000))
- {
- console.log("Returned: " + sensor.readDataStr(1024));
- }
- else
- console.log("Timed out waiting for response");
-
- if (callback)
- callback();
- }
-
- /************** Main code **************/
- // Instantiate a GROVEGPRS Module on UART 0
- var sensor = new sensorObj.GroveGPRS(0);
-
- // Set the baud rate, 19200 baud is the default.
- if (sensor.setBaudRate(19200))
- {
- console.log("Failed to set baud rate");
- process.exit(0);
- }
-
- printUsage(process.argv[1]);
-
- // Note: in nodeJS, command-line argument 0 is "node".
- // Command-line argument 1 is "grovegprs.js"
- // If you have a third argument, then it's a command
- if (process.argv.length > 2)
- {
- console.log("Sending command line argument (" + process.argv[2] + ")...");
- sendCommand(sensor, process.argv[2]);
- }
- else
- {
- // sending this command as a synchronous callback ensures better timing
- var callbackFunc = function()
- {
- setTimeout(function()
- {
- // query the saved profiles
- console.log("Querying the saved profiles (AT&V)...");
- sendCommand(sensor, "AT&V");
-
- // A comprehensive list is available from the
- // datasheet at:
- // http://www.seeedstudio.com/wiki/images/7/72/AT_Commands_v1.11.pdf
- }, 1000);
- };
-
- // query the module manufacturer
- console.log("Querying module manufacturer (AT+CGMI)...");
- sendCommand(sensor, "AT+CGMI", callbackFunc);
- }
-
-
- /************** Exit code **************/
- process.on('SIGINT', function()
- {
- sensor = null;
- sensorObj.cleanUp();
- sensorObj = null;
- console.log("Exiting...");
- process.exit(0);
- });
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