Michael,

Am 03.07.21 um 06:48 schrieb Michael Iimura:
L:/OVMS/home/miimura/Open-Vehicle-Monitoring-System-3/vehicle/OVMS.V3/components/vehicle_toyotarav4ev/src/vehicle_toyotarav4ev.cpp:100:50: error: invalid use of member 'OvmsVehicleToyotaRav4Ev::m_v_bat_cool_in_temp' in static member function
   c.printf("<p>Battery Coolant Inlet: %.1f C</p>", m_v_bat_cool_in_temp->AsFloat());
                                                  ^
In file included from L:/OVMS/home/miimura/Open-Vehicle-Monitoring-System-3/vehicle/OVMS.V3/components/vehicle_toyotarav4ev/src/vehicle_toyotarav4ev.cpp:38:0:
L:/OVMS/home/miimura/Open-Vehicle-Monitoring-System-3/vehicle/OVMS.V3/components/vehicle_toyotarav4ev/src/vehicle_toyotarav4ev.h:90:22: note: declared here
     OvmsMetricFloat *m_v_bat_cool_in_temp;
                      ^
Anybody have a clue what I'm doing wrong here?

as Steve already explained, if you want to access a member variable, you need to get the object (vehicle) pointer. You could do so by calling MyVehicleFactory.ActiveVehicle().

But do you really want a static metric value in a web page? Why not use a standard metric display so you can see the dynamic value changes?

To do so, you simply need to add class "receiver" to e.g. your main panel div, then do:

  c.printf("<p>Battery Coolant Inlet: <span class=\"metric\" data-metric=\"xr4.v.b.t.cltin\">?</span> C</p>");

Or, using the metric number widget to get some default layout & style:
      <div class="receiver">
        ...
        <div class="metric number" data-metric="xr4.v.b.t.cltin" data-prec="1">
          <span class="label">Battery Coolant Inlet:</span>
          <span class="value">?</span>
          <span class="unit">°C</span>
        </div>
        ...
      </div>
See https://docs.openvehicles.com/en/latest/components/ovms_webserver/docs/metrics.html for the full reference.

Regards,
Michael

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