1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*global */
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2014 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 GPSSensor = require('jsupm_ublox6');
// Instantiate a Ublox6 GPS device on uart 0.
var myGPSSensor = new GPSSensor.Ublox6(0);
if (!myGPSSensor.setupTty(GPSSensor.int_B9600))
{
console.log("Failed to setup tty port parameters");
process.exit(0);
}
// Collect and output NMEA data.
// This device also supports numerous configuration options, which
// you can set with writeData(). Please refer to the Ublox-6 data
// sheet for further information on the formats of the data sent and
// received, and the various operating modes available.
var bufferLength = 256;
var nmeaBuffer = new GPSSensor.charArray(bufferLength);
function getGPSInfo()
{
// we don't want the read to block in this example, so always
// check to see if data is available first.
if (myGPSSensor.dataAvailable())
{
var rv = myGPSSensor.readData(nmeaBuffer, bufferLength);
var GPSData, dataCharCode, isNewLine, lastNewLine;
var numlines= 0;
if (rv > 0)
{
GPSData = "";
// read only the number of characters
// specified by myGPSSensor.readData
for (var x = 0; x < rv; x++)
GPSData += nmeaBuffer.getitem(x);
process.stdout.write(GPSData)
}
if (rv < 0) // some sort of read error occured
{
console.log("Port read error.");
process.exit(0);
}
}
}
setInterval(getGPSInfo, 100);
// Print message when exiting
process.on('SIGINT', function()
{
console.log("Exiting...");
process.exit(0);
});
|
