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.

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?

On 6 Mar 2020, at 6:31 PM, Chris van der Meijden <chris@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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