<div dir="auto"><div dir="ltr"><div dir="auto"><div>*sigh* I'm now at the point where my OVMS is next to unusable because of the GPS interference issue. I switched back to my old ovms unit (no GSM daughter board and the external power doesn't work)... And the problem went away. Even with the faster polling. So it seems something is possibly wrong with the OVMS hardware itself.. Maybe some noise on the can bus is playing havock? It's most peculiar. </div><div dir="auto"><br></div><div dir="auto">It might also make sense of something I'm seeing on the HUD which is that it periodically stalls and resets. </div><div dir="auto">I guess I should move the daughter board across to check out that. </div><div dir="auto"><br></div><div dir="auto">Michael </div><div dir="auto"><br></div><div dir="auto"><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Mon, 29 May 2023, 4:06 pm Michael Balzer, <<a href="mailto:dexter@expeedo.de" target="_blank" rel="noreferrer">dexter@expeedo.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
Michael,<br>
<br>
if the module affects your car's builtin navigation system, I think
that points to some EM interference. While the module has passed the
EM tests for certification, it still emits some EM noise, and some
devices are more sensitive to this than others. There also may be a
satellite outage affecting Australia currently, that adds to the
sensitivity.<br>
<br>
You could try to selectively switch off Wifi and the modem when the
issue occurs, to see if one of these cause it.<br>
<br>
If not, you could try reorienting and replacing the module in the
car, especially if it's very close to the nav system's GPS antenna.<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div>Am 27.05.23 um 10:07 schrieb Michael
Geddes:<br>
</div>
<blockquote type="cite">
<div dir="auto">Latest: I changed the startup vehicle to None and
turned off the mobile. Still getting drifting vehicle GPS until
I unplug the OVMS. Hardware issue? Does anybody have any clues?
<div dir="auto"><br>
</div>
<div dir="auto">Michael </div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sun, 21 May 2023, 11:41 am
Michael Geddes, <<a href="mailto:frog@bunyip.wheelycreek.net" rel="noreferrer noreferrer" target="_blank">frog@bunyip.wheelycreek.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi all,<br>
<div>I'm having a bunch of weird things going on which seem
correlated to having the OVMS running. I'm not convinced
of causation yet.</div>
<div><br>
</div>
<div>My car's Nav system is drifting out majorly (like by
>100m) and then seems to stay out. This causes major
distractions as the nav system keeps giving me warnings
about going down one-way roads and it makes the navigation
'interesting' to use.</div>
<div><br>
</div>
<div>I also noticed that Android Auto location was frozen in
one place, so I assumed this was coming from the car - or
meant to be anyway. I reduced the polling rate (new work
I'm doing) slightly and this freezing no longer happens.
(To 3 speed queries per second). But the drifting out on
the Navigation still happens... but then not on AA!? Very
very weird.</div>
<div><br>
</div>
<div>If I unplug the OVMS from the OBD port (as I'm driving)
it seems to (but not immediately - after a minute or so)
correct itself. It's hard to confirm this is directly
resulting .. but it seems to be?</div>
<div><br>
</div>
<div>I turned off my ECU2OBD which should mean that it is
resorting to 1 per second POLL with a low throttle value.
I'll run with some logs to make sure this is what is
happening.. but it still seems that this hasn't stopped
this issue from happening.</div>
<div><br>
</div>
<div>I've tried turning the GSM power off. No result.</div>
<div><br>
</div>
<div>Another note: I seem to have stopped getting anything
near regular updates from the OVMS GPS. Every now and
again it gets a successful change come through. Still
working on diagnosing that.. maybe it's related?</div>
<div><br>
</div>
<div><br>
</div>
<div>Any thoughts / help would be useful.</div>
<div><br>
</div>
<div>//.ichael</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
</div>
</blockquote>
</div>
<br>
<fieldset></fieldset>
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</blockquote>
<br>
<pre cols="72">--
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26</pre>
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