[Ovmsdev] GPS / NMEA integration

[Mark Webb-Johnson]

I tried with mine. I’m getting the same. But GPGSV is showing 16 satellites… My testing setup is far from ideal, however; with an extension cable and 40’ of GPS antenna stretched across my bedroom to the balcony outside.

It was working on the original prototype I tested, so not sure what has changed.

Quickest is to ask the China supplier to check. I’ve done that, and will let you know the result.

Regards, Mark.

> On 10 Dec 2017, at 6:46 AM, Michael Balzer <dexter at expeedo.de> wrote:
> 
> I'm currently working on the NMEA module. The MUX channel is working, but I don't get a GPS fix.
> 
> I've tried all GPS commands and now suspect my SIMCOM module having a hardware issue.
> 
> I'm doing this:
> 
> OVMS > level debug
> OVMS > power simcom on
> 
> …wait for the MUX to be ready, then issue…
> 
> OVMS > simcom muxtx 4 AT+CGPSNMEA=1
> OVMS > simcom muxtx 4 AT+CGPS=1,1
> 
> …now the SIMCOM begins sending NMEA $GPGGA lines once per second looking like this:
> 
> D (2937174) SIMCOM rx: f9 05 ff 35 24 47 50 47 47 41 2c 2c 2c 2c 2c 2c ...5$GPGGA,,,,,,
> D (2937174) SIMCOM rx: 30 2c 2c 2c 2c 2c 2c 2c 2c 2a 36 36 0d 0a 60 f9 0,,,,,,,,*66..`.
> 
> Normally the modem should get a GPS fix within about 1-2 minutes and begin filling data in the $GPGGA record.
> 
> But my modem won't, it just keeps sending empty fields.
> 
> Can someone please try this with his/her module?
> 
> To disable the GPS receiver, issue:
> 
> OVMS > simcom muxtx 4 AT+CGPS=0
> 
> Thanks & regards,
> Michael
> 
> -- 
> Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
> Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
> _______________________________________________
> OvmsDev mailing list
> OvmsDev at lists.teslaclub.hk
> http://lists.teslaclub.hk/mailman/listinfo/ovmsdev

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openvehicles.com/pipermail/ovmsdev/attachments/20171210/873c2184/attachment.htm>