<div dir="ltr">My favorite is Eurostyle connector from Molex, 39501 and 39502 series.<div><br><div><br></div><div><a href="http://www.ebay.com/sch/i.html?_odkw=3.5mm+connector+terminal+green&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X3.5mm+connector+pluggable+green.TRS0&_nkw=3.5mm+connector+pluggable+green&_sacat=0">http://www.ebay.com/sch/i.html?_odkw=3.5mm+connector+terminal+green&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X3.5mm+connector+pluggable+green.TRS0&_nkw=3.5mm+connector+pluggable+green&_sacat=0</a><br></div><div><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 25, 2015 at 1:17 PM, Pete Soper via TriEmbed <span dir="ltr"><<a href="mailto:triembed@triembed.org" target="_blank">triembed@triembed.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><span class="">
<br>
<br>
<div>On 09/25/2015 01:06 PM, Carl Nobile
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Pete,
<div><br>
</div>
<div>What Charlie is trying to do is create a board that the
people working on the CANInstall spec can use as a base line
tool. We won't be using long cables for this initial work.</div>
<div><br>
</div>
<div>I like the RJ11 for some things, but it needs to mate with
a flat cable which by its nature can't be twisted, CAT cables
won't mate to it without a lot of extra work. We need, as
Charlie just told me, </div>
</div>
</blockquote></span>
Tell this to the fractional billions of people using RJ45
connectors. They're identical to RJ11 but eight vs six connections.
I agree 200% that inserting and crimping UTP into an RJ45 or RJ11 is
a certified, genuine pain in the you know what, but figured labor
costs in this case are considered zero. :-)<span class="HOEnZb"><font color="#888888"><br>
<br>
-Pete</font></span><div><div class="h5"><br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div>four wires, two for the CAN protocol and two for power.
Each one will go to some sort of sensor.</div>
<div><br>
</div>
<div>~Carl</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Sep 25, 2015 at 12:46 PM, Pete
Soper via TriEmbed <span dir="ltr"><<a href="mailto:triembed@triembed.org" target="_blank"></a><a href="mailto:triembed@triembed.org" target="_blank">triembed@triembed.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> The cable requirement
for CANBUS is explicitly dictated by the bus standard
(covered in this <a href="http://www.ti.com/lit/an/slla270/slla270.pdf" target="_blank">TI blurb</a>): you'll be using 120 ohm
twisted pair. Accommodating the 120 ohm termination
resistors needed at the two ends of the bus is a side
issue that might interact with connector choice. The easy
choice for cable is UTP (aka CAT3/5/6) with as few twisted
pairs as you can get by with (since canbus only uses one
pair). Somebody recently gave away hundreds of feet of
this stuff at a TriEmbed meeting, so I think this is a
good choice.<br>
<br>
The bus is only two wires, plus one more for an optional
shield. So a very simple connector will do it. IMO the
lowly RJ11 will get the job done. I have three crimping
tools you can borrow. :-) The male connectors are cheap as
dirt. Here's a <a href="http://www.digikey.com/product-detail/en/A-2014-0-4-R/AE10390-ND/2183641" target="_blank">Digikey jack</a> (35 cents at Q50). Some
of the "big boys" use RJ45, but I can't see the need for
that and it's just extra cost wrt PCB area.<br>
<br>
The lowly RJ11 combined with UTP cable might be a
practical solution. The connector is "keyed", trivial to
get in and out, but stays in place. You could also arrange
a convention where a termination resistor could either be
crimped into two additional connector sites (so the
termination is part of the cable) or handled on the PCB. A
weather boot would be used for cases where crud might get
inside the connector, as it is highly exposed. Using
dielectric grease to exclude oxygen would be a good idea
too for cases where the connection is going to be exposed.<br>
<br>
-Pete
<div>
<div><br>
<br>
<div>On 09/25/2015 10:18 AM, Charles West via TriEmbed
wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div>
<div dir="ltr">
<div>
<div>
<div>
<div>Hello,<br>
<br>
</div>
I'm working on a board for the CanInstall
autoregistration project and I'm not really
sure what connectors to use for it. I'm
currently leaning toward either DF13-4
connectors or simple 4 pin headers. If I
may ask, are there any other connectors that
you would recommend or have used in your
projects?<br>
<br>
</div>
Pros/cons:<br>
DF13:<br>
The upside is that they are very small,
connect very securely and SMD female
connectors are $.41 per. The downside is that
they are extremely hard to get out (don't pull
on cable, very gently pry with finger nail on
one side, then the other) and cables for them
are extremely hard to find/expensive ($1.5 per
in lots of 20 is the cheapest I've found).<br>
<br>
Vertical Headers:<br>
The plus is I can get break apart SMD headers
at roughly $.05 each including shipping at
lots of $5 (<a href="http://www.ebay.com/itm/10pcs-2-54MM-1-40Pin-SMD-SMT-1-40Pin-Male-Single-Row-Pin-Header-/261879748701?hash=item3cf93fd85d" target="_blank">http://www.ebay.com/itm/10pcs-2-54MM-1-40Pin-SMD-SMT-1-40Pin-Male-Single-Row-Pin-Header-/261879748701?hash=item3cf93fd85d</a>),
cables at $.22 per in lots of $5 (<a href="http://www.ebay.com/itm/20pcs-2-54mm-to-2-54mm-Dupont-Wire-Cable-Connectors-4P-to-4P-Pin-Header-20cm-YG-/111487505711?hash=item19f52c552f" target="_blank"></a><a href="http://www.ebay.com/itm/20pcs-2-54mm-to-2-54mm-Dupont-Wire-Cable-Connectors-4P-to-4P-Pin-Header-20cm-YG-/111487505711?hash=item19f52c552f" target="_blank">http://www.ebay.com/itm/20pcs-2-54mm-to-2-54mm-Dupont-Wire-Cable-Connectors-4P-to-4P-Pin-Header-20cm-YG-/111487505711?hash=item19f52c552f</a>)
and they are pretty standard for hobbyist
projects (and extremely similar to servo
connections). The downsides are that they
have no polarity control, are much more likely
to slide out and take up a lot more board real
estate (translating to either bigger boards or
less connectors).<br>
<br>
</div>
Thanks,<br>
</div>
Charlie<br>
</div>
<br>
<fieldset></fieldset>
<br>
</div>
</div>
<pre>_______________________________________________
Triangle, NC Embedded Computing mailing list
<a href="mailto:TriEmbed@triembed.org" target="_blank">TriEmbed@triembed.org</a>
<a href="http://mail.triembed.org/mailman/listinfo/triembed_triembed.org" target="_blank">http://mail.triembed.org/mailman/listinfo/triembed_triembed.org</a>
TriEmbed web site: <a href="http://TriEmbed.org" target="_blank">http://TriEmbed.org</a>
</pre>
</blockquote>
<br>
</div>
<br>
_______________________________________________<br>
Triangle, NC Embedded Computing mailing list<br>
<a href="mailto:TriEmbed@triembed.org" target="_blank">TriEmbed@triembed.org</a><br>
<a href="http://mail.triembed.org/mailman/listinfo/triembed_triembed.org" rel="noreferrer" target="_blank">http://mail.triembed.org/mailman/listinfo/triembed_triembed.org</a><br>
TriEmbed web site: <a href="http://TriEmbed.org" rel="noreferrer" target="_blank">http://TriEmbed.org</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div>-------------------------------------------------------------------------------<br>
Carl J. Nobile (Software Engineer)<br>
<a href="mailto:carl.nobile@gmail.com" target="_blank">carl.nobile@gmail.com</a><br>
-------------------------------------------------------------------------------</div>
</div>
</blockquote>
<br>
</div></div></div>
<br>_______________________________________________<br>
Triangle, NC Embedded Computing mailing list<br>
<a href="mailto:TriEmbed@triembed.org">TriEmbed@triembed.org</a><br>
<a href="http://mail.triembed.org/mailman/listinfo/triembed_triembed.org" rel="noreferrer" target="_blank">http://mail.triembed.org/mailman/listinfo/triembed_triembed.org</a><br>
TriEmbed web site: <a href="http://TriEmbed.org" rel="noreferrer" target="_blank">http://TriEmbed.org</a><br>
<br></blockquote></div><br></div>