Re: pins, cables
- From: Rich Webb <bbew.ar@xxxxxxxxxxxxxxxxxx>
- Date: Sun, 11 Nov 2007 14:30:36 GMT
On 09 Nov 2007 21:19:36 -0500, Allan Adler <ara@xxxxxxxxxxxxxxxxxxxx>
wrote:
I have various devices that have exposed pins or holes for pins. I'd
like to examine the states of these pins/holes by connecting wires
between them and a solderless breadboard. Typical examples include
pins on MIDI ports, D15 game ports, D25 printer ports, etc. If I get
anywhere doing that, I'll also want to try connect some ports to other
ports by cables, maybe of my own design. I can't assume that the precise
cables I need will be readily available, so I need convenient ways to make
a lot of different kinds of cables. I also need to keep this cheap, but
I don't do ebay.
What can I use for examining individual pins/holes (e.g. a "single pin plug",
if that exists)? How can I develop the capability of cheaply and conveniently
making lots of different kinds of cables, or remaking them? Where can
I get this stuff dirt cheap? I keep an eye out for discarded electronics,
but I rarely see the kinds of cables I'm interested in. The only exception
was a printer cable that was discarded with its printer.
For single pins, breadboarding, test point jumpers and similar, I'd
recommend getting a bag of individual crimp connectors (Molex
16-02-0102 (tin) or 16-02-0103 (gold)), a couple of spools of 22 AWG
stranded wire, a couple of colors of shrink tubing (1/16" should
work), and the $10 crimp tool HT-202A (at Jameco and many others).
Spend an afternoon making up some sets in a standard size, 6", 12",
18" or whatever. Note that the 16-02-0102 connectors are for
0.025-square posts and not particularly good for mating to the smaller
DB pins (though they will sort of work if you don't jiggle them). For
normal sized DB pins, try AMP part 1-66504-0.
The crimp tool is adequate but nothing to brag about. A notch up the
ladder is an Eclipse 300-054 frame and 300-086 die, available as a set
from http://www.toolking.com/eclipse_300-009.aspx
You can buy similar jumpers already made from Sparkfun
http://www.sparkfun.com/commerce/product_info.php?products_id=8430
For "regular" 0.1" center rectangular connectors, nothing beats ribbon
cable and IDC connectors. To mate to a breadboard (where you'll want
to span a separator) use IDC DIP connectors (Mouser carries them).
For 0.1" single-inline connectors, start with the Molex kit KK-100.
For smaller pitches in pairs and single row, as well as latching
connectors and metric-sized pins, look in the vicinity of the catalog
pages for the 0.1" families.
.
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