[pskmail] Re: A tiny progress report regarding gps
- From: Rein Couperus <rein@xxxxxxxxxxxx>
- To: pskmail@xxxxxxxxxxxxx
- Date: Sat, 10 Feb 2007 10:55:37 +0100
Hi Per,
I think what we need is something we can poll from pskmail, so we can get the
position when we want.
One way to do that is to fork a new process which does exactly what you did,
and put the result in a file which we can read any time from any of the other
preocesses...
Rein EA/PA0R/P
> -----Ursprüngliche Nachricht-----
> Von: pskmail@xxxxxxxxxxxxx
> Gesendet: 10.02.07 09:20:26
> An: pskmail@xxxxxxxxxxxxx
> Betreff: [pskmail] A tiny progress report regarding gps
>
> Hi all,
>
> The neighbours looked funny at me today as I chased up and down the
> street with a laptop in one hand and a gps in the other. GPS coverage
> indoors is non existant, no coverage even if I stick the gps out the
> window, so here I was running in a T-shirt with the temperature outside
> being -14C (7F).
>
> Anyway, I have had requests for a gps interface to pskmail. Some sailing
> friends will go on a longer sailing trip and wanted a "long range AIS"
> or something equivalent. The meaning is, naturally, that a gps should
> supply pskmail with updated positions so that the aprs pos beacons show
> the real position at all times. I looked at that and its really too easy
> to interface a gps using perl.
>
> I plugged my old Garmin emap in my laptop and set it to output nmea
> data. I then executed the following and ran up and down the street:
>
> #!/usr/bin/perl
> use GPS::NMEA;
>
> my $gps = GPS::NMEA->new(Port => '/dev/ttyS0',
> Baud => 4800);
> while(1) {
> my($ns,$lat,$ew,$lon) = $gps->get_position;
> print "($ns,$lat,$ew,$lon)\n";
> }
>
>
> And here is the output:
>
> [per@newdelly source]$ ./gpsnmea.pl
> (N,59.135215,E,18.097861)
> (N,59.135206,E,18.097844)
> (N,59.135195,E,18.097824)
> (N,59.135184,E,18.097818)
> (N,59.135172,E,18.097829)
> (N,59.135165,E,18.097849)
> (N,59.135159,E,18.097865)
> (N,59.135150,E,18.097882)
> (N,59.135143,E,18.097896)
> (N,59.135143,E,18.097895)
> (N,59.135147,E,18.097877)
> (N,59.135154,E,18.097858)
> (N,59.135162,E,18.097836)
> (N,59.135173,E,18.097815)
> (N,59.135186,E,18.097809)
> (N,59.135200,E,18.097822)
> (N,59.135210,E,18.097841)
> (N,59.135223,E,18.097862)
> (N,59.135233,E,18.097882)
>
> Its updated abt once per second.
>
> So, this seems to work. NMEA is a standard as well so the gps make
> shouldn't make any difference (or ?). I can include something like this
> in the client, will just have to look at that new options dialogue.
>
> 73 de Per, sm0rwo
>
>
>
>
>
--
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