<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;
      charset=windows-1252">
  </head>
  <body>
    <p>One more thought from a newbie to this issue which just came to
      my mind...</p>
    <p>Where is the added value of this expensive solution compared to
      just reading the 12V voltage. My eUp measures 12.6V when its shut
      down and 14.4V when its ready-to-drive/driving or charging.</p>
    <p>Soko<br>
    </p>
    <div class="moz-cite-prefix">On 03.08.2020 08:31, Mark Webb-Johnson
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:77DB02FE-A30C-4044-9F4F-4DA4B258D4C5@webb-johnson.net">
      <meta http-equiv="Content-Type" content="text/html;
        charset=windows-1252">
      DB9 pin #1 is used for k-line. I guess it could be re-used for two
      purposes (on an expansion card).
      <div class=""><br class="">
      </div>
      <div class="">That said, it would make the cabling a little
        tricky. The DB9 12V is permanent. Having a 12v switched supply
        as well would presumably mean a loose wire coming out of the
        cable? Seems easier to just make a simple DA26 cable with just 1
        pin connected to a loose wire (or other wire outputs for relay,
        and general inputs, etc) - kind of why I was thinking of making
        this a more sophisticated board.</div>
      <div class=""><br class="">
      </div>
      <div class="">Regards, Mark.<br class="">
        <div><br class="">
          <blockquote type="cite" class="">
            <div class="">On 3 Aug 2020, at 1:26 PM, Michael Balzer <<a
                href="mailto:dexter@expeedo.de" class=""
                moz-do-not-send="true">dexter@expeedo.de</a>> wrote:</div>
            <br class="Apple-interchange-newline">
            <div class="">
              <meta http-equiv="Content-Type" content="text/html;
                charset=windows-1252" class="">
              <div class=""> The re-certification requirement is a PITA
                for hardware evolution. But I'm ok with extending the
                K-line board, many OBD vehicles will still have K-line
                devices (even the Twizy's UCH and airbag modules are on
                K-line / KWP2000).<br class="">
                <br class="">
                Regarding the DB9, can't we use pin 1 (GEP_7) for this?<br
                  class="">
                <br class="">
                Regards,<br class="">
                Michael<br class="">
                <br class="">
                <br class="">
                <div class="moz-cite-prefix">Am 03.08.20 um 04:21
                  schrieb Mark Webb-Johnson:<br class="">
                </div>
                <blockquote type="cite"
                  cite="mid:71151A1C-7871-439D-9678-11FCC5AE7642@webb-johnson.net"
                  class="">
                  <meta http-equiv="Content-Type" content="text/html;
                    charset=windows-1252" class="">
                  It is hard to modify the main board, without voiding
                  the certifications we have (and going through the
                  expense of re-certifying).
                  <div class=""><br class="">
                  </div>
                  <div class="">Simplest would be to implement this on
                    an expansion board. Perhaps extend the K-line board
                    we have to do other functions (12v switched status,
                    relay control, etc)?</div>
                  <div class=""><br class="">
                  </div>
                  <div class="">The DB9 is full (all 9 pins assigned),
                    so this would have to be via DA26.</div>
                  <div class=""><br class="">
                  </div>
                  <div class="">We have been using the EGPIO lines for
                    system use, starting at #0 and working upwards:</div>
                  <div class=""><br class="">
                  </div>
                  <div class="">
                    <ul class="MailOutline">
                      <li class="">#0 MDM_EN (modem enable)</li>
                      <li class="">#1 SW_CTL (external 12v control)</li>
                      <li class="">#2 CAN1_EN (can#1 enable)</li>
                      <li class="">#3 MDM_DTR (modem DTR)</li>
                    </ul>
                  </div>
                  <div class=""><br class="">
                  </div>
                  <div class="">Then expansion boards should start at #9
                    and work downwards:</div>
                  <div class=""><br class="">
                  </div>
                  <div class="">
                    <ul class="MailOutline">
                      <li class="">#9 K-line enable (on k-line expansion
                        board)</li>
                    </ul>
                  </div>
                  <div class=""><br class="">
                    <div class="">I guess we need just a simple voltage
                      divider, and pull down, to determine on/off state
                      of switched 12v?</div>
                    <div class=""><br class="">
                    </div>
                    <div class="">Regards, Mark.</div>
                    <div class=""><br class="">
                    </div>
                    <div class="">P.S. <span style="caret-color: rgb(0,
                        0, 0);" class="">I have been hoping that
                        Espressif would release a successor to the ESP32
                        with more RAM and GPIO pins, but it looks like
                        the prefer to go lower performance/spec, rather
                        than up.</span></div>
                    <div class=""><font class=""><span
                          style="caret-color: rgb(0, 0, 0);" class=""><br
                            class="">
                        </span></font>
                      <blockquote type="cite" class="">
                        <div class="">On 2 Aug 2020, at 5:47 PM, Michael
                          Balzer <<a href="mailto:dexter@expeedo.de"
                            class="" moz-do-not-send="true">dexter@expeedo.de</a>>
                          wrote:</div>
                        <br class="Apple-interchange-newline">
                        <div class="">
                          <div class="">Mark,<br class="">
                            <br class="">
                            I remember the current Leaf also has the
                            issue of the OBD port being<br class="">
                            filtered by a gateway to only support
                            polling.<br class="">
                            <br class="">
                            I think we should generally add a +12V
                            ignition signal detection to the<br class="">
                            next OVMS hardware revision, i.e. without
                            the need to add extra hardware.<br class="">
                            <br class="">
                            There is no standard for the ignition /
                            switched +12V being available at<br class="">
                            the OBD port, but I think most cars will
                            have that. If a car doesn't, it<br class="">
                            should still be easy to get from around the
                            OBD port (e.g. fuses).<br class="">
                            <br class="">
                            Regards,<br class="">
                            Michael<br class="">
                            <br class="">
                            <br class="">
                            Am 02.08.20 um 11:03 schrieb Soko:<br
                              class="">
                            <blockquote type="cite" class="">Meaning: We
                              need a special VW-cable (like for the
                              NIssan or Kia Soul)<br class="">
                              with OBD Pin1 gets into a pin on the DB9
                              connector and into a<br class="">
                              Digital-In-Pin on the OVMS. A voltage
                              divider is needed as well as<br class="">
                              +12V on OBD-Pin1 signals "ignition on".<br
                                class="">
                            </blockquote>
                            <br class="">
                            -- <br class="">
                            Michael Balzer * Helkenberger Weg 9 *
                            D-58256 Ennepetal<br class="">
                            Fon 02333 / 833 5735 * Handy 0176 / 206 989
                            26<br class="">
                            <br class="">
                            <br class="">
_______________________________________________<br class="">
                            OvmsDev mailing list<br class="">
                            <a
                              href="mailto:OvmsDev@lists.openvehicles.com"
                              class="" moz-do-not-send="true">OvmsDev@lists.openvehicles.com</a><br
                              class="">
                            <a class="moz-txt-link-freetext"
                              href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev"
                              moz-do-not-send="true">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a><br
                              class="">
                          </div>
                        </div>
                      </blockquote>
                    </div>
                    <br class="">
                  </div>
                  <br class="">
                  <fieldset class="mimeAttachmentHeader"></fieldset>
                  <pre class="moz-quote-pre" wrap="">_______________________________________________
OvmsDev mailing list
<a class="moz-txt-link-abbreviated" href="mailto:OvmsDev@lists.openvehicles.com" moz-do-not-send="true">OvmsDev@lists.openvehicles.com</a>
<a class="moz-txt-link-freetext" href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev" moz-do-not-send="true">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a>
</pre>
                </blockquote>
                <br class="">
                <pre class="moz-signature" cols="72">-- 
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
</pre>
              </div>
              _______________________________________________<br
                class="">
              OvmsDev mailing list<br class="">
              <a href="mailto:OvmsDev@lists.openvehicles.com" class=""
                moz-do-not-send="true">OvmsDev@lists.openvehicles.com</a><br
                class="">
              <a class="moz-txt-link-freetext" href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a><br
                class="">
            </div>
          </blockquote>
        </div>
        <br class="">
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <pre class="moz-quote-pre" wrap="">_______________________________________________
OvmsDev mailing list
<a class="moz-txt-link-abbreviated" href="mailto:OvmsDev@lists.openvehicles.com">OvmsDev@lists.openvehicles.com</a>
<a class="moz-txt-link-freetext" href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a>
</pre>
    </blockquote>
  </body>
</html>