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Solved: 540s.....Altitude???


djames Author

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Legendary Explorer
Replies: 5

1 April 2011, 05:09

I guess no question is a dumb one???.............I have had my tomtom for a week and am still discovering new things to do, and ways to use it..........I live in Colorado and am always wondering about elevation ........

 

With all that this gps does.............it doesn't measure altitude???...................ooooorrrrrr.......does it...........

 

i did a search here and found nothing............and out on the web, i found all sorts of differing opinions........

 

does anyone know for sure................??

Marked as answer: Joghurt on 5 April 2011, 14:10

After getting a how-do-I-install-it-mail every once a week or so (and to be prepared for when they "open" the 100x-devices for 3rd-party-plugins) I changed the installation process and made it a lot easier. No more downloading and unpacking and moving stuff. :)

Just connect your TomTom to your computer, wait 'till that orange/white screen comes up, then visit my webiste http://gps.dg4sfw.de/?height (you will need to allow your browser to execute my installation applet on the first time) and click the big "install/uninstall"-button.
It will then search for your TomTom and should display its serial number (and type, if not a 100x) and you can select "install". If it can't find your TomTom on the frist try, try "search".

If you then click "install" it will install my Height-plugin onto your TomTom.

After it is done, wait five seconds then disconnect your TomTom safely (on Windows use the little green remove-hardware-safely-arrow in your tray on the bottom right, next to your clock).

By the way: If you want to remove the plugin do everything the same way but instead of "install" there will be an "uninstall"-button.

If your then disconnect your USB-cable your TomTom should boot and you should see your height in the upper left corner of your navigation screen if your TomTom can determine it's position (e.g. you're outside and it sees satellites or so).

Have fun! :)

Oh, and if you don't like the position of the plugin on your navigation screen or its size or want to switch to "feet" instead of "meters" or you need to add a correction value (some GPS-chip-families are a bunch of meters off, in Europe that's about -48 meters) you can do that by editing the file "height.cfg" in the "Height"-directory on your TomTom using a normal text-editor.

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43 comments

  • frankdenver

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    Renowned Trailblazer
    Replies: 14

    1 April 2011, 05:29

    It's been some time since I've done this:

    Go to:

    http://gps.dg4sfw.de/

     

    Choose "Understood".

    Download the height file and follow the directions EXPLICTLY.

    Seems I had a problem putting the files in their proper folders on the TT, but you should be able to get help from the forums.

    Once it's set up, it works like a charm. We were in Nederland (above Boulder) last weekend; the altitude was within 30 feet or closer.

    Check your current altitude with Google Earth, then remember to edit the .cfg file to correct the proper Day and Night numbers.

    It works with the One and 530 XXL; should work with yours.

    Good luck.

    FrankG

     

  • frankdenver

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    Renowned Trailblazer
    Replies: 14

    1 April 2011, 06:18

    A followup on the above:

     

    A forum search shows the following:


    Here's what he says: (he being Jogurt, the programmer)

    Just extract the package, extract the "cab"-file in it and throw the file and the directory in it onto your TT, root (topmost) directory.

    What that *means* is:
    * Unzip the .zip file, somewhere on your PC. It contains a .cab file and a .toc file. (I don't know what the .toc file is -- I eventually ignored it.)
    * Now, unzip the .cab file! I remember (now) that I missed that step too, and wondered why nothing happened when I copied it to my unit.
    * When you unzip the .cab file, you'll find a file called "ttn", and a "Height" directory with a couple of files in it: height.cfg and height.so.
    * Those are the things you copy to your unit. Put "ttn" in the root, and copy the "Height" directory and files to a "Height" directory on the unit.

     

    Then (and only then) can you edit the cfg file to type in your day and night numbers. Here is also where you add (or subtract) from the indicated altitude to correct.

  • djames Author

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    Legendary Explorer
    Replies: 5

    1 April 2011, 17:28

    Thanks a lot frank........that sounds like a deal to try......I may wait to see if a moderator chimes in on this one..........after reading thru these forums, it sounds to me like these [tomtoms] are a little on the fragile side when it comes to communicating with their own downloads, let alone someone else's..........:smileyhappy:...........Mine is doing a great job right now and I have learned not to "fix" unless broken.............I think I may be able to buy an altimeter for under 50 bucks......

  • Joghurt Answer

    You can see here how much reputation Joghurt has received from other members.

    Outstanding Explorer
    Replies: 13

    5 April 2011, 14:10

    After getting a how-do-I-install-it-mail every once a week or so (and to be prepared for when they "open" the 100x-devices for 3rd-party-plugins) I changed the installation process and made it a lot easier. No more downloading and unpacking and moving stuff. :)

    Just connect your TomTom to your computer, wait 'till that orange/white screen comes up, then visit my webiste http://gps.dg4sfw.de/?height (you will need to allow your browser to execute my installation applet on the first time) and click the big "install/uninstall"-button.
    It will then search for your TomTom and should display its serial number (and type, if not a 100x) and you can select "install". If it can't find your TomTom on the frist try, try "search".

    If you then click "install" it will install my Height-plugin onto your TomTom.

    After it is done, wait five seconds then disconnect your TomTom safely (on Windows use the little green remove-hardware-safely-arrow in your tray on the bottom right, next to your clock).

    By the way: If you want to remove the plugin do everything the same way but instead of "install" there will be an "uninstall"-button.

    If your then disconnect your USB-cable your TomTom should boot and you should see your height in the upper left corner of your navigation screen if your TomTom can determine it's position (e.g. you're outside and it sees satellites or so).

    Have fun! :)

    Oh, and if you don't like the position of the plugin on your navigation screen or its size or want to switch to "feet" instead of "meters" or you need to add a correction value (some GPS-chip-families are a bunch of meters off, in Europe that's about -48 meters) you can do that by editing the file "height.cfg" in the "Height"-directory on your TomTom using a normal text-editor.
  • dhn
    dhn

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    Exalted Vanguard
    Replies: 14160
    Expert (Car navigation)

    Expert (Car navigation)

    5 April 2011, 14:26

    Hey Joghurt!

     

    Do you mind visiting tomtomforums.com and posting there the same as here. Many folks will appreciate it.

  • Joghurt

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    Outstanding Explorer
    Replies: 13

    5 April 2011, 14:34

  • Joghurt

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    Outstanding Explorer
    Replies: 13

    5 April 2011, 14:38

    Oh, and please be aware that this is NOT a tool made by TomTom but by me as a sole fan of their stuff, so PLEASE DO NOT bother them with support questions!
  • Kenneth

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    Retired Employee
    Replies: 222

    5 April 2011, 17:06

    This looks like a great plugin - thanks for sharing.  :)

  • frankdenver

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    Renowned Trailblazer
    Replies: 14

    5 April 2011, 18:38

    Thanks, Joghurt!

     

    That's waaaay cool!

     

    FrankG:smileyvery-happy:

  • xyzzy

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    Master Explorer
    Replies: 5

    1 June 2011, 01:10

    Being an amateur astronomer the altitude function is necessary but I tried installing your plugin and all it did was make my xxl inoperable... except from my computer. Since Tomtom's reset button seems to have gone walkabout the only way to fix it was use your (Joghurt's) website to uninstall which did work.

    Any ideas? Altitude would be real nice...

     

  • Bily42

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    Legendary Explorer
    Replies: 8

    1 June 2011, 19:18

    Been using this app for awhile on my 540 xxl and it works great.

     

    Thanks, Joghurt!

  • xyzzy

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    Master Explorer
    Replies: 5

    1 June 2011, 20:25

    Tho it's not marked (about the only thing on the unit is the XXL) I think mine is a 550 XXL...

  • JCW4B

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    Apprentice Traveler
    Replies: 1

    17 September 2011, 17:44

    Many thanks for the plugin - it works well, and it was simple to make the 48 metres correction.

  • Traylaw

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    Elite Voyager
    Replies: 3675

    17 September 2011, 22:02

    Instead of guessing what your geoidal Separation is for your location here is a calculator for doing that along with what geoidal separation is.

  • Joghurt

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    Outstanding Explorer
    Replies: 13

    17 September 2011, 22:36

    The problem is not that I can't calculate the geoid separation but that the different GPS-chips used by TomTom in their different device types handle the separation in different ways, and I can't say which ones do what. :( The NMEA-Protocoll is designed to contain a field for the altitude above mean sea level in meters and another one for height of geoid above WGS84, the geoid separation. To get the altitude value we want you should only need to add these values and that's it. BUT, only some vendors do it that way, as far as I discovered. There seem to be others that let the geoid-separation-field be emtpy (wouldn't be a problem, I have a formula that can calculate the separation) but others let it be empty AND add the value to the altitude-above-mean-sea-level-field internally before output, and I can't say which do what without comparing the values to a known absolute height. What I would need to fix this automatically is a list of all the (about 60) TomTom-devices which says which devices need the geoid separation to be added and which ones don't. And the list would need to get updates. What I think is never gonna happen. :(
  • Traylaw

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    Elite Voyager
    Replies: 3675

    17 September 2011, 23:28

    I like the plugin and thank you for providing it. Have any plans for a new project?

  • BillK

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    Neophyte Traveler
    Replies: 3

    18 September 2011, 07:59

    Hi Joghurt

    Thanks for making this tool available. I just installed it last night and it works great. This is really what I was looking for to resolve some technical issues, and win a bet with my buddy :smileyhappy:

    Cheers

  • Joghurt

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    Outstanding Explorer
    Replies: 13

    18 September 2011, 08:13

    @Traylaw: Not really. I made Height, MiniLog and Overleap because I wanted these features and they were missing back then, and everything else I want is already there. :)
    Btw: Thank you TomTom for adding Logging and Waypoint-skipping to the Urban Rider! :)

    The only thing I'm currently thinking of is maybe add a menu to Height so you don't have to mess with the configuration file to adjust the geoid separation.
  • spider362

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    Exalted Navigator
    Replies: 541

    18 September 2011, 18:56

    Joghurt, a couple of questions:

     

    1. Once the geoid separation is set for a particular location does it have to be tweaked periodically, or is it pretty well set for life?
    2. I live on the east coast of the US but have family in Phoenix, AZ about 2000 miles (3218 km) away. We visit them once a year and I take my GPS with me. Once we get there will I have to set the geoid separation again for that particular location?
  • Joghurt

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    Outstanding Explorer
    Replies: 13

    18 September 2011, 20:37

    > does it have to be tweaked periodically, or is it pretty well set for life?
    As far as I understood it depends on the thickness of the earth and therefore is pretty well set. ;)

    > Once we get there will I have to set the geoid separation again for that particular location?
    Hmm, I don't know that. Actually, it would be really cool if you would report that. :)
  • spider362

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    Exalted Navigator
    Replies: 541

    18 September 2011, 21:22

    Thanks Joghurt, I'll try to remember to let you know about changing locations. However, we only go once a year and our trip is in the spring, so it'll be 6 months, or so, before I'll know.

  • Traylaw

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    Elite Voyager
    Replies: 3675

    19 September 2011, 14:54

    Joghurt,

    I have had the plugin stop functioning.....Looking in the gps I find the script ttn missing. Not sure yet what  event or sequence of events causes the gps to attack  this file (such as a reset) but it does occur. I have Navcore 9.061.

    Of course to recover I simply copy the script back into the gps.from a backup. Just thought I would report it.

  • Joghurt

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    Outstanding Explorer
    Replies: 13

    19 September 2011, 14:55

    Sometimes NavCore-updates from TomTom do this... Thanks for reporting.
  • Traylaw

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    Elite Voyager
    Replies: 3675

    19 September 2011, 15:27

    Also just found the TomTom's utility "Clear Flash" does delete the ttn script.

  • spider362

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    Exalted Navigator
    Replies: 541

    19 September 2011, 19:19


    Traylaw wrote:

    Joghurt,

    I have had the plugin stop functioning.....Looking in the gps I find the script ttn missing. Not sure yet what  event or sequence of events causes the gps to attack  this file (such as a reset) but it does occur. I have Navcore 9.061.

    Of course to recover I simply copy the script back into the gps.from a backup. Just thought I would report it.


    What ttn script are you talking about?

     

    I have the Height plugin, it's working, but I can't find any ttn files on my device what-so-ever.

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