GPS: Speed/Course varies too much/is jumpy

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I have the complete version of BTStack GPS and it connect with my external
GPS receiver but when I open TOmTOm it doesn't work...

Original issue reported on code.google.com by mmarinde...@gmail.com on 12 May 2010 at 7:49

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OK. thanks for trying. In the new extension, I've patched 
"isGPSHardwareAvailable" to just return YES.That would have been a clean 
approach. Anyway, I'll make another one that makes TomTom believe it is running 
on an iPhone (when running on an iPod).  

Original comment by matthias.ringwald@gmail.com on 5 Jul 2010 at 6:27

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Great, I'll test as soon as it's available.

Original comment by mikeb...@gmail.com on 5 Jul 2010 at 12:54

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@matthias.ringwald:  Did you mean to attach an updated file for us to try?

Original comment by mikeb...@gmail.com on 5 Jul 2010 at 2:28

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@mikebock no, not yet. Didn't get time to work on it.

Original comment by matthias.ringwald@gmail.com on 5 Jul 2010 at 2:31

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ok, no problem.  Just wanted to make sure I wasn't missing something.

Original comment by mikeb...@gmail.com on 5 Jul 2010 at 2:43

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@mikebock & @winstontanjonhan: next try. please try again with this dylib.

Original comment by matthias.ringwald@gmail.com on 5 Jul 2010 at 7:15

Attachments:

• GPS-Support.dylib

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That seems to have fixed that problem!  I will be testing for a short drive 
later, but I'm not seeing the "Connect to GPS" message at all now.

Original comment by mikeb...@gmail.com on 5 Jul 2010 at 8:39

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Same here with me too. No more "Connect to GPS" message! Thanks a lot matthias! 
NOw to the next problem... XD

mikebock, do you often get greyed screen due to lost of signal? 

Original comment by winstont...@gmail.com on 6 Jul 2010 at 12:49

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@mikebock & @winstontanjonhan: thanks for testing. I'll assume that that's a 
useable solution for TomTom and include it in the next update. I'm wondering if 
I should write to TomTom's customer support and complain that it contains 
hard-coded application behavior based on the device type, which is not 
recommended by Apple's development guidelines... :) TomTom should purley rely 
on the "GPS" capability and not make his own assumptions based on model.

Original comment by matthias.ringwald@gmail.com on 6 Jul 2010 at 12:59

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@winstontanjonhan:  Yep, sure do.  I sometimes get the "Poor GPS signal" 
message now, but I assumed it was due to my old, cheap PalmOne GPS unit.  But 
come to think of it, I don't recall getting that with Tomtom v 1.0.  It's 
interesting that you are getting that too.

@matthias.ringwald: That would surely be poor app dev if that's what the TT 
team has done.

Original comment by mikeb...@gmail.com on 6 Jul 2010 at 1:12

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I received the "Poor GPS signal" about every 30-45 seconds on my drive in this 
morning.  This is way more than what I got on Tomtom 1.0, so something else 
must be different.

As another point, Copilot doesn't even pick up a location (getting "Determining 
Current Position"), but seems to see that there is a GPS device.

Original comment by mikeb...@gmail.com on 6 Jul 2010 at 4:28

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@mikebock: I'm using Holux M-1000 and I'm getting the same message as you. If 
both of us are getting the same experience, shouldn't it be caused by the TT? 

Why can't TT code properly? Arghh...

Original comment by winstont...@gmail.com on 7 Jul 2010 at 2:59

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Yes, I agree that it is acting strangely.  What I'd like to see is the 
"stability" (meaning no "Poor GPS signal") of Tomtom 1.0 without the "Connect 
to GPS" flash scrolling.  Somehow it seems that this would be possible with 
BTstack, but maybe not.  How can we make TT think it's connected to the tomtom 
gps car kit mount?

Original comment by mikeb...@gmail.com on 7 Jul 2010 at 8:35

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BTstack GPS only connects and receives the GPS data from the external device 
and converts them into the internal CoreLocation format. GPS quality is part of 
the GPS output. So the first question would be what's quality reported by the 
GPS, is it really ok or really "poor"? Not sure what to do/offer. BTstack GPS 
could pretend that the GPS signal is always perfect, but somehow this doesn't 
seem like actual solution. ... I'll try to display the signal quality on the 
main screen, so we can get some data on that in the next version.

Original comment by matthias.ringwald@gmail.com on 8 Jul 2010 at 7:28

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That would be a good idea.  From my itouch Tomtom 1.3 says "Poor GPS signal", 
Copilot drops out occassionally (but seems to work better), and Navigon doesn't 
complain at all and seems to work the best.

Original comment by mikeb...@gmail.com on 8 Jul 2010 at 8:13

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Feedback after one week:
Ended up buying Navigon 1.6 and went on a 175 mile round trip this past 
weekend.  BTStack worked perfectly on my iTouch and PalmOne GPS.  It was 
virtually perfect.  This combo works much better than TomTom 1.3.

I also bought CoPilot (I couldn't pass up the $5 price).  However that didn't 
work as well.  For the most part it read the gps signal, but occassionally it 
would lose the signal (Determing Current Position) or would put me on a 
different street or direction than I was on.  For a GPS that you have to rely 
on, I wouldn't recommend the combo, but as a back up $5 is worth the price.

So, thanks again Matthias for a nice utility!

Original comment by mikeb...@gmail.com on 12 Jul 2010 at 11:36

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Hi Matthias, i just purchased the full version of btstack gps. i have my ipod 
connected to my tomtom cradle, but btstack does not detect the tomtom. under 
"devices" it stays on "searching". my ipod's bluetooth is already disabled. 
please advise.

i have 3rd gen ipod touch on 3.1.3 firmware. 

Original comment by jeffrey....@gmail.com on 13 Jul 2010 at 6:55

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@jeffrey.liu11 hi. as far as I know, the TomTom cradle provides GPS to the 
iPhone/iPod and it is used by the TomTom software and it is connected via 
Apple's proprietary Extended Accessory protocol via Bluetooth. So TomTom app 
should work with TomTom cradle out of the box without Jailbreak. What do you 
do? Try to use the TomTom cradle with other navigation software?

Original comment by matthias.ringwald@gmail.com on 13 Jul 2010 at 7:07

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@jeffrey.liu11  Have you installed the TomTom Car Kit Tool app?  Does it 
recognize the cradle?

Original comment by mikeb...@gmail.com on 13 Jul 2010 at 11:32

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I have tomtom 1.4 app installed in my iPod. When I connect my iPod to the 
tomtom cradle and open the tomtom app, it says I need to connect to a gps. 
After some searching around I think it's because I need a Bluetooth stack. I 
have this btstack a try by the btstack does not "see" my tomtom device. It just 
searches forever. 

Original comment by jeffrey....@gmail.com on 13 Jul 2010 at 3:33

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@jeffrey.liu11 Please try the TomTom Car Kit Tool from TomTom with Apple's 
Bluetooth turned on as mikebock suggested. TomTom's iPhone/iPod GPS cradle 
should work with an unmodified iOS - this also means it does not work with any 
other computer or smarthone as it implements Apple's proprietary External 
Accessory protocol.

Please contact TomTom for support with the TomTom cradle. If you don't need 
BTstack GPS (as you don't have a standard BT GPS), please email me at 
iphone@ringwald.ch for a refund.

Original comment by matthias.ringwald@gmail.com on 13 Jul 2010 at 6:53

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Hi Matthias,

i tried turning on my ipod's bluetooth, but no luck. still says "connect to 
gps" when i open the tomtom app. i'll try giving tomtom a call.

yea it would be great if i could get that refund. i'll send you an email. thanks

Original comment by jeffrey....@gmail.com on 15 Jul 2010 at 12:59

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hello matthias... here's my issue... (which for all of about 3 minutes wasn't 
one....)
i've got an IPT 2g just started running iOS4 (annoying already) and it's JB 
using redsn0w... i've got a holux gpslim240 which worked great with roqy and 
navigon while i had 3.1.2... but i had to restore a couple days ago and just 
went with 4... ANYWAYs. the first time i loaded btsack up it found my device 
and just hund at connecting... just randomly i decided i try replacing the dlyb 
and the next time after a respring it worked perfectly! i was about to go onto 
cydia to purchase when i REBOOTED and tried one more time... now it's back to 
just hanging at "connecting"!!! anything? please! thanks... this looks like a 
great app...

Original comment by eig...@gmail.com on 17 Jul 2010 at 10:15

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odd... i would've deleted my above comment /\ /\ but just in case there's an 
off chance that someone else runs into this... well it appears that having 
roqyBT installed still was interfering... after the uninstall seems to be 
working... i guess i'll buy after all! thanks.

Original comment by eig...@gmail.com on 17 Jul 2010 at 10:36

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eighto: good to know, as I was contemplating upgrading to iOS4 with my touch 
2G.  The only thing holding me back was how BTstack and Navigon would work, and 
it sounds like it does.  

Original comment by mikeb...@gmail.com on 19 Jul 2010 at 10:51

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@mikebock BTstack runs fine on OS 4.0 as far as I can tell. However, I'm rather 
disappointed with 4.0 on my iPhone 3G, it just got slower although I didn't 
enable extra features like Multitasking. So, I wouldn't recommend 4.0 for non 
latest-gen devices (3GS, latest iPod)... I'll probably downgrade the 3G if 
possible when I can get an iPhone 4G

Original comment by matthias.ringwald@gmail.com on 20 Jul 2010 at 12:15

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Try to disable the spotlight search - the 3G should run better with iOS 4.0 now.

Original comment by MisterEf...@googlemail.com on 21 Jul 2010 at 7:09

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@MisterEffiks: thanks, I'll try that for now. just want new iPhone! :)

Original comment by matthias.ringwald@gmail.com on 21 Jul 2010 at 7:23

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Hey,

I have Btstack 1.4 and TomTOM 1.2. Btstack connects to my bluetooth gps 
receiver and shows my location but once tomtom opens up it doest not recognize 
any gps devices? how do i connect to tom tom?

Original comment by athomas...@gmail.com on 23 Jul 2010 at 4:59

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Have you a valid license for BTstack GPS?

Original comment by MisterEf...@googlemail.com on 23 Jul 2010 at 11:42

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Yes I do, I purchased the license couple of weeks ago. 

Original comment by athomas...@gmail.com on 23 Jul 2010 at 5:19

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Is tomtom automatically supposed to connect to the reciever or do i need to do 
something to make it connect?

Original comment by athomas...@gmail.com on 23 Jul 2010 at 5:20

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@athomas002 Hi. TO use BTstack GPS, you start the app and connect to your BT 
GPS. After that, you see your location on the map. Now, leave BTstack GPS with 
the HOME button and start TomTom (or any other location app). It should pick up 
the GPS location. If this doesn't work, please verify that the BTstack icon in 
the status bar stays on for more than 10 seconds after you leave BTstack GPS. 
If it goes away although you have a valid license, please try to remove or 
reinstall Backgrounder.

Original comment by matthias.ringwald@gmail.com on 23 Jul 2010 at 6:32

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Do you need backgrounder to run btstack and a gps app?

Original comment by athomas...@gmail.com on 23 Jul 2010 at 6:38

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no. BTstack GPS does "native Backgrounding", but I've had several people for 
which Backgrounder broke it - still don't know. Basically, both work together 
fine. If you have it installed, check that you select "Native Backgrounding" 
for BTstack GPS.

Original comment by matthias.ringwald@gmail.com on 23 Jul 2010 at 6:58

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Tomtom just freezes up anytime I open after connecting to btstack and it stays 
on.

Original comment by athomas...@gmail.com on 23 Jul 2010 at 7:34

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@athomas002:  Does tomtom freeze if you open it up without going to BTstack 
first?

Original comment by mikeb...@gmail.com on 23 Jul 2010 at 10:26

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No it works fine when it's not connected

Original comment by athomas...@gmail.com on 23 Jul 2010 at 10:31

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@athomas002 What other (related) extensions do you have installed like roqyBT 
or fake locations tools - you can check 
/Library/MobileSubstrate/DynamicLibraries ? Please try after de-installing 
others to see if it works then?

Original comment by matthias.ringwald@gmail.com on 24 Jul 2010 at 8:27

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Hey I deleted Roqybt and Xgps and it works now! Thanks for the help. Only issue 
now would be losing the connection randomly but I guess you cant complain. 
Thanks again

Original comment by athomas...@gmail.com on 24 Jul 2010 at 12:55

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Update, I left the bluetooth receiver on the top by the windows where it got 
better signal and there hasnt been drops. Thanks!

Original comment by athomas...@gmail.com on 24 Jul 2010 at 5:59

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How to buy a license?

Original comment by erco...@gmail.com on 2 Aug 2010 at 12:57

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I'm wondering as well how to get a license. I have gone to the app in cydia, 
and clicked the button that says "purchase for 5$" But it has failed to load 
every time. Is this just a problem with the cydia servers at the moment? I'll 
try again later tonight, I'm am looking forward to this application very much.

Original comment by pohlinge...@gmail.com on 3 Aug 2010 at 4:29

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