[Ovmsdev] TPMS Bug in ovms_server_v2.cpp?

[Chris van der Meijden]

Hi Mark,
thank you for your quick response.
I created an issue on github. I feel still a bit to unexperienced to
start coding on the core elements of OVMS. 
Thank you for your help.
Regards
Chris

Am Freitag, den 06.03.2020, 20:03 +0800 schrieb Mark Webb-Johnson:
> Looks like an oversight. The spec says:
> 
> > Car TPMS message 0x57 “W”
> > This message is sent <cartoserver> “C”, or <servertoapp> “s”, and
> > transmits the last known TPMS values of the vehicle.
> > <data> is comma-separated list of:
> > front-right wheel pressure (psi)front-right wheel temperature
> > (celcius)rear-right wheel pressure (psi)rear-right wheel
> > temperature (celcius)front-left wheel pressure (psi)front-left
> > wheel temperature (celcius)rear-left wheel pressure (psi)rear-left
> > wheel temperature (celcius)Stale TPMS indicator (-1=none, 0=stale,
> > >0 ok)
> 
> We can test the metrics to see if they are defined. If not, then set
> stale to -1. Should just be another line in the server v2 code.
> 
> Can you create a github issue, and I will fix. Or make the fix
> yourself and pull request?
> 
> Regards, Mark
> 
> > On 6 Mar 2020, at 6:31 PM, Chris van der Meijden <chris at arachnon.de
> > > wrote:
> > 
> > Hi all,
> > 
> > as I can't find the CAN-ID's for TPMS for the VW e-Up at the
> > moment, I
> > thought I just disable the feature, so the app won't display the
> > TPMS
> > boxes unnecessarily.
> > 
> > In OVMS v2 this was possible by setting car_stale_tpms = -1 so the
> > last
> > number sent by the "W" message to the server was -1. With that -1
> > the
> > app will not display the TMPS boxes.
> > 
> > The code in ovms_server_v2.cpp for the message is now
> > 
> >   extram::ostringstream buffer;
> >   buffer
> >     << "MP-0 W"
> >     << StandardMetrics.ms_v_tpms_fr_p->AsString("0",PSI)
> >     << ","
> >     << StandardMetrics.ms_v_tpms_fr_t->AsString("0")
> >     << ","
> >     << StandardMetrics.ms_v_tpms_rr_p->AsString("0",PSI)
> >     << ","
> >     << StandardMetrics.ms_v_tpms_rr_t->AsString("0")
> >     << ","
> >     << StandardMetrics.ms_v_tpms_fl_p->AsString("0",PSI)
> >     << ","
> >     << StandardMetrics.ms_v_tpms_fl_t->AsString("0")
> >     << ","
> >     << StandardMetrics.ms_v_tpms_rl_p->AsString("0",PSI)
> >     << ","
> >     << StandardMetrics.ms_v_tpms_rl_t->AsString("0")
> >     << ((stale)?",0":",1")
> >     ;
> > 
> >   Transmit(buffer.str().c_str());
> > 
> > and that gives no room for sending a -1 as far as I understand it.
> > 
> > Is this a bug, a feature, or am I missing something?
> > 
> > Thanx for help
> > 
> > Greetinx
> > 
> > Chris
> > 
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