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02-17-2005, 10:32 AM
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#1
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Constant Bitrate
Join Date: Dec 2004
Location: Jersey/Virginia Tech
Posts: 201
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NMEA ACTIVEX control ---free if possible
anyoen know of a good, free, NMEA string reading ActiveX control that i could access with visual basic 6?
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02-17-2005, 10:55 AM
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#2
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See me in my wet t-shirt.
Join Date: Aug 2003
Location: Warwickshire, UK
Posts: 1,909
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Quote: Originally Posted by Prindle19
anyoen know of a good, free, NMEA string reading ActiveX control that i could access with visual basic 6?
Yes
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02-17-2005, 10:56 AM
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#3
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Raw Wave
Join Date: Jan 2004
Location: SilverSpring Maryland
Posts: 2,957
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You generally only need to interpret a few of the different NMEA strings to do navigation and parsing them is fairly trivial once you know what they mean. I would recommend you take a look at http://pcptpp030.psychologie.uni-reg...arch/NMEA0183/ and the link to sam blackburn's NMEA library in C++ on there.
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02-17-2005, 02:29 PM
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#5
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Constant Bitrate
Join Date: Dec 2004
Location: Jersey/Virginia Tech
Posts: 201
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thanks, i'll try it, looks limited in what it parses, i need to be able to parse strings that an aneomometer may put out.
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02-19-2005, 02:54 PM
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#6
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Constant Bitrate
Join Date: Dec 2004
Location: Jersey/Virginia Tech
Posts: 201
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how do i specify the com port???
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02-19-2005, 03:42 PM
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#7
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See me in my wet t-shirt.
Join Date: Aug 2003
Location: Warwickshire, UK
Posts: 1,909
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GPS.Connect (COMPORTNUMBER)
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02-19-2005, 03:43 PM
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#8
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See me in my wet t-shirt.
Join Date: Aug 2003
Location: Warwickshire, UK
Posts: 1,909
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02-19-2005, 03:49 PM
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#9
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Constant Bitrate
Join Date: Dec 2004
Location: Jersey/Virginia Tech
Posts: 201
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thank ya stevie, just what i needed 
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02-19-2005, 04:04 PM
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#10
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Constant Bitrate
Join Date: Dec 2004
Location: Jersey/Virginia Tech
Posts: 201
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Any idea why i'm getting useless data from my GPS, it is working fine in other applications, and i double checked my gps unit to make sure its set to NMEA 4800 bps
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02-19-2005, 04:23 PM
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#11
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FLAC
Join Date: Jun 2004
Location: NH
Posts: 1,173
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.
it's got to be that active x control...
I dont know why you need an active x control to parse the string... write the code yourself it'll take a few minutes that way you know what your dealing with...
__________________
Progress [I will seriously never be done!]
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Software: Still, re-Writing my existing front end in .Net
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02-20-2005, 02:30 AM
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#12
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I'm sorry, and you are....?
Join Date: Jan 2003
Location: Ruston, LA
Posts: 9,861
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Here is a simple example of getting gps data from a serial port.
__________________
[H]4 Life
My next generation Front End is right on schedule.
It will be done sometime in the next generation.
I'm a lesbian too.
I am for hire!
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02-20-2005, 02:37 AM
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#13
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FLAC
Join Date: Jan 2004
Posts: 1,379
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NMEA data is so easy to parse, it's almost easier to write your own algorithm then it is to try and use someone elses control.
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02-20-2005, 02:43 AM
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#14
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My Village Called
Join Date: Jul 2004
Location: Berkeley, CA
Posts: 10,763
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Quote: Originally Posted by Chairboy
NMEA data is so easy to parse, it's almost easier to write your own algorithm then it is to try and use someone elses control.
Yeh, just like caller ID data 
Quick question about parsing data: can you get a smooth update of a digital speedometer using GPS speed?
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02-20-2005, 02:47 AM
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#15
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Constant Bitrate
Join Date: Dec 2004
Location: Jersey/Virginia Tech
Posts: 201
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thankd frodo, little too tipsy to mess with it now, but i'll check it out in the morning
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