[Ovmsdev] Internal GPS now available
mark at webb-johnson.net
Sun Nov 4 10:43:49 HKT 2012
Brilliant! That is:
that I've been trying to find time to get around to for a long time now.
Your implementation looks good, and I'll try to merge it in with the mainline code. I'll also try to bring in your Twizy code, as it is today, as well.
On 4 Nov, 2012, at 4:25 AM, Michael Balzer <dexter at expeedo.de> wrote:
> For those driving budget cars without onboard GPS (like the Twizy ;):
> Internal GPS integration:
> - optionally use internal SIM908 GPS instead of car GPS
> (note: needs GPS antenna)
> controlled by new compiler switch: OVMS_INTERNALGPS
> - will poll for GPS data once per second while driving (speed > 0)
> else once every 5 minutes to be able to trace theft / transportation
> - reduced Google maps SMS to just coordinates for compatibility
> with Google Maps App
> This commit contains no Twizy specific changes, should be suitable
> for any other car without GPS on CAN bus.
> @List: I'm a bit frustrated about having to reinvent atof(). I gave up on the lib version, it just produced funny float values (not 0 or something explainable). Found nothing helpful on the web, definitely no type, prototype or linker problem.
> A new Twizy commit is also there, not much of a change though. Using the internal GPS with a decent antenna works like a charm though, quite accurate and fast. I intend to use the altitude to calculate a better energy usage / range estimation, as the Twizy estimation drops too fast when driving uphills.
> Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
> Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
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