pdeschen/bancroft

A gpsd node module client

bancroft's Issues

Please add track data

http://www.catb.org/gpsd/gpsd_json.html

self.location.track = data.track;

To provide other parameters

I'm using your module from long time now. It's really good and helpful thank you 😄 .
I need some extra parameters like ept, mode, epx, epv. I'm gettting them with the location data, I think you're filtering it out. Is it possible to add those parameters to the json object?

Sporadic bad message format

From time to time, message get splits between two poll. Should I look for \r along with \n?

error! { message: 'bad message format',
  cause: '{"class":"SKY","tag":"GSV","device":"/dev/ttyUSB0","xdop":2.11,"ydop":1.30,"vdop":3.10,"tdop":2.74,"hdop":2.00,"gdop":4.88,"pdop":3.70,"satellites":[{"PRN":2,"el":36,"az":254,"ss"',
  error:
   { stack: [Getter/Setter],
     arguments: [],
     type: 'unexpected_eos',
     message: [Getter/Setter] } }
error! { message: 'bad message format',
  cause: ':45,"used":true},{"PRN":4,"el":81,"az":288,"ss":41,"used":true},{"PRN":10,"el":39,"az":174,"ss":0,"used":false},{"PRN":12,"el":29,"az":313,"ss":39,"used":true},{"PRN":13,"el":5,"az":108,"ss":0,"used":false},{"PRN":17,"el":61,"az":101,"ss":44,"used":true},{"PRN":20,"el":24,"az":47,"ss":0,"used":false},{"PRN":23,"el":12,"az":80,"ss":0,"used":false},{"PRN":27,"el":5,"az":256,"ss":0,"used":false},{"PRN":28,"el":11,"az":165,"ss":0,"used":false}]}\r',
  error:
   { stack: [Getter/Setter],
     arguments: [ ':' ],
     type: 'unexpected_token',
     message: [Getter/Setter] } }

Time Sometimes String

With the device I'm using, a GlobalSat BU-353 the time reported by TPV events is actually a string. The device, not knowing the real time, seems to be starting at the date 2009-02-15 at midnight, and incrementing the seconds since the time the device first starts.

Here's some code I altered to log the data:
/* timestamp received is in seconds */ console.log('time', typeof(data.time), data.time); self.location.timestamp = data.time * 1000;

Here's the output:
time string 2009-02-15T00:13:47.050Z time string 2009-02-15T00:13:48.040Z time string 2009-02-15T00:13:49.040Z time string 2009-02-15T00:13:50.050Z

Once the string is multiplied by 1000, it of course becomes NaN.

I'm making this ticket here but I'll submit a fix myself via pull request.

I'm a little concerned about a fix though; my device always starts at the same date, but will other devices start at other arbitrary dates? Has anyone else used this module with different devices and had similar issues? Also, what is the timestamp supposed to be anyway, a UNIX time integer?

Crashing when checking for location and no satellite/location available

It seems that after running my app a few times without establishing any GPS/satellite signal, when the location check runs it crashes and returns the following:

/home/pi/Desktop/picycle/node_modules/bancroft/bancroft.js:85
                for ( var index = 0; index < data.satellites.length; index++)
                                                            ^
TypeError: Cannot read property 'length' of undefined
    at Socket.<anonymous> (/home/pi/Desktop/picycle/node_modules/bancroft/bancroft.js:85:61)
    at Socket.EventEmitter.emit (events.js:95:17)
    at Socket.<anonymous> (_stream_readable.js:746:14)
    at Socket.EventEmitter.emit (events.js:92:17)
    at emitReadable_ (_stream_readable.js:408:10)
    at emitReadable (_stream_readable.js:404:5)
    at readableAddChunk (_stream_readable.js:165:9)
    at Socket.Readable.push (_stream_readable.js:127:10)

Any ideas?

Accumulate waypoints/route into kml

Via an option, (track), accumulate waypoints into a kml document.

Reconnect option

Is there any option to reconnect if gpsd isn't running?

From my tests I see that if gpsd isn't running before brancroft there is no option to connect again..

Example not working

I have tried to run your example with a ND-100S GPS receiver, it displays 'connected' in the console however it does not show up message regarding location or satellites.

I have installed GPSD however it returns the following for the 'test':

$ sudo apt-get install gpsd
$ sudo gpsd -D 2 -n -b -N -P /tmp/gpsd.pid /dev/ttyUSB0

gpsd:INFO: launching (Version 3.6)
gpsd:ERROR: can't bind to IPv4 port gpsd, Address already in use
gpsd:ERROR: maybe gpsd is already running!
gpsd:ERROR: can't create IPv6 socket

The second test fails as well:

$ gpspipe -w

-bash: gpspipe: command not found

When running the app this is the output:

pi@raspberrypi ~/Desktop/pi $ sudo nodejs app.js
The "sys" module is now called "util". It should have a similar interface.
connected