<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Mark,<br>
<br>
yes, that's chassis ground -- shouldn't it be? I interpreted the
OVMS GND as the ground for the supply voltage (12V), as the CAN bus
has its dedicated "low" line.<br>
<br>
I just looked up some OBD2 sites: 4+5 normally are the same. One
page says an OBD2 cable should have identical potential on 4 and 5
to ensure proper function. Another OBD2 cable I bought connects
them, so maybe for a general product GND should connect both, but I
don't think there's a difference on the car side... normally.<br>
<br>
But I've also seen some info on non standard OBD2 plugs, also for
some GM and Opel cars, having other signals where the CAN bus should
be, so I'm also interested in your pinout, Michael J.<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 10.11.2012 04:23, schrieb Mark
Webb-Johnson:<br>
</div>
<blockquote
cite="mid:D5417B8E-2C87-4ECA-93CC-867D34BD6164@webb-johnson.net"
type="cite">
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
<div>Michael,</div>
<div><br>
</div>
<div>One question: you have GND on pin #4 (odb). I have that shown
as chassis ground, not signal ground. Is that correct?</div>
<div><br>
</div>
<div>Michael J: is that the same connector and pins as you are
using for the Volt?</div>
<div><br>
</div>
<div>Regards, Mark<br>
<br>
On 10 Nov, 2012, at 2:16 AM, Michael Balzer <<a
moz-do-not-send="true" href="mailto:dexter@expeedo.de">dexter@expeedo.de</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
Mark,<br>
<br>
great to hear about user activity :-)<br>
<br>
1) I just created an OVMS to OBD2 cable image and checked it
in:<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="https://github.com/dexterbg/Open-Vehicle-Monitoring-System/commit/a7c3a3e8f12d7759b896bb75c8e570ebc10ec11a">https://github.com/dexterbg/Open-Vehicle-Monitoring-System/commit/a7c3a3e8f12d7759b896bb75c8e570ebc10ec11a</a><br>
As OBD2 is standard incl. CAN pinout, this should be valid for
any OBD2 port, so could be added to the FastTech OVMS product
line. It's not a standard cable, or at least none I know of.<br>
<br>
2) No known way up to now. I also think the Twizy would not
respond to the port, as the whole CAN bus is quiet when the
car is off and not charging. Plus, because the charger draws
some 30-35 W for many hours after charging has completed, many
drivers use auto-power-off sockets.<br>
<br>
3) I'll forward your specification to the german Twizy forum.<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 09.11.2012 15:23, schrieb Mark
Webb-Johnson:<br>
</div>
<blockquote
cite="mid:EE90302A-61CF-4387-A310-48BE6A32ABC4@webb-johnson.net"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<div><br>
</div>
<div>Twizy support seems to be coming along nicely, thanks
to the amazing work Michael is doing. Some good
functionality there already.</div>
<div><br>
</div>
<div>I'm starting to see some Twizy users register on <a
moz-do-not-send="true" href="http://openvehicles.com">openvehicles.com</a>.
Perhaps the word is getting out?</div>
<div><br>
</div>
<div>Some questions / requests:</div>
<div><br>
</div>
<div>
<ol class="MailOutline">
<li>Michael: Can you let me have the details on the
cable pinouts and parts you are using at the moment?
Is it a standard cable, or are you having to make
something up?<br>
<br>
</li>
<li>How is charge control on the Twizy done? Is there
any way of stopping or starting (topup) a charge from
within the car, or is it just controlled by plugging?
Any chance of can bus control of this?<br>
<br>
</li>
<li>Can anyone help with the car images for the Twizy?
There are lots of nice images available, but they need
to be photoshopped to the right dimensions and
transparent background png.</li>
</ol>
</div>
<div><br>
</div>
<div>Regards, Mark.</div>
<div><br>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
OvmsDev mailing list
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:OvmsDev@lists.teslaclub.hk">OvmsDev@lists.teslaclub.hk</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.teslaclub.hk/mailman/listinfo/ovmsdev">http://lists.teslaclub.hk/mailman/listinfo/ovmsdev</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
</pre>
</div>
</blockquote>
<blockquote type="cite">
<div><dexter.vcf></div>
</blockquote>
<blockquote type="cite">
<div><span>_______________________________________________</span><br>
<span>OvmsDev mailing list</span><br>
<span><a moz-do-not-send="true"
href="mailto:OvmsDev@lists.teslaclub.hk">OvmsDev@lists.teslaclub.hk</a></span><br>
<span><a moz-do-not-send="true"
href="http://lists.teslaclub.hk/mailman/listinfo/ovmsdev">http://lists.teslaclub.hk/mailman/listinfo/ovmsdev</a></span><br>
</div>
</blockquote>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
OvmsDev mailing list
<a class="moz-txt-link-abbreviated" href="mailto:OvmsDev@lists.teslaclub.hk">OvmsDev@lists.teslaclub.hk</a>
<a class="moz-txt-link-freetext" href="http://lists.teslaclub.hk/mailman/listinfo/ovmsdev">http://lists.teslaclub.hk/mailman/listinfo/ovmsdev</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
</pre>
</body>
</html>