How to connect wire to female end-cap connector?


I'd like to place an RFID reader on my front door, and run about 20ft of wire to my Arduino. I was thinking it would make sense to use some spare CAT5 wire for this: simply remove the cap at the end, strip the wires, somehow plug them into a connector that then has female slots, crimp it down in there, and then I could insert the header pins of the RFID reader into this connector.

1) Is it "permissible" (as far as general electronics wiring goes) to have my reader so far away from my controller? 2) What's the best method for accomplishing what I'm trying to do with the wiring at the point of the RFID reader? I didn't want to solder the wires to the reader's header pins, I wanted it to by easily removable in case I change the setup.

I tried searching but I couldn't find a connecter that allowed you to simply insert wires, crimp it down, and basically have an instant ribbon cable of sorts.

Any guidance is appreciated.


Home Depot carries a CAT5 ribbon cable crimper & connectors - make up whatever cable you need.
I think they also have female-female couplers so you join 2 male-ended wires together.

As far as distance - Ethernet can go a long ways. RFID, depends whether the reader is powered or not I suppose. You’d have to provide more details on what’s connected.

Thanks! BTW, got up to Chapter 7 today :-)

Can you give me some sample links? I just tried looking didn't really find it. I was thinking that I could have something at the end of the CAT5 cable that looks like this: (obviously the male end has the CAT5 wires attached to it.)

You seem to be describing an "IDC" (insulation displacement cable) connector. These come in a number of different styles; the double row style like on an IDE cable or a number of different styles where the pins are in one long row. You can also find "punch down" style connectors (like in the inside of a female RJ45 jack sold creating network outlets in a home or office) that will mount onto a PCB. sells a nice selection of the IDE-cable-type connectors. For other types you just need to poke around component sellers like Newark / Mouser / Digikey.

Maybe something like this?

Wire the flying leads to the header you showed.

Or get a male plug, wire it up as needed to plug into something else. I got a pack of 25 or 50 at Home Depot, quite cheap. Crimping tool was more. Look in the electrical wiring section.

How'd you like the book so far? We're waiting for someone to post a review at Amazon. Book ranking has been all over the place - Amazon Best Sellers Rank: #193,468 in Books have seen this jump by hundreds of thousands a day! while the number of sellers keeps climbing, worldwide domination, er, uh distribution! Currently 32 new & 9 used - odd how the used prices can be higher than new - one guy asking $60 used! Some kind of odd supply & demand thing I guess. Our only interaction is with the publisher tho.

I'm not sure we're talking about the same thing....

I want to be able to take a CAT5 wire, strip the ends and stick them into something, that when I crimp down, I suddenly have something that looks like this: has female slots, that I could insert the RFID board with the male header/breakout pins.....

The book is great. I think the Chapters on the internals might be too in-depth for the first-time Arduino user, and you might not need the chapter on the "Cookbooks." I think the basic electronic tutorials on voltage, wiring, etc are good, and I think the chapter on I/O is good (what I'm up to now). I think the book is written really well, in clear-cut language that pretty much all users should be able to understand.

Which book?


My book Doc, Arduino for Teens.

osmosis311, You may want to crimp on male pins and then slide them into crimp housings. I keep a bunch of these on hand in different sizes, and with male-male, male-female, and female-female terminated wires to make up adapter cables, headers for pots and RS232 connectors, etc. Very useful. Glad you're finding the book useful. We found it tricky as hardware engineers not to get too indepth, but yet not wanting to gloss over stuff at the same time. When it was done, 40 pages had to be trimmed out too. That was harder than writing them to start!

Or female pins

Thanks Robert!

I'll get these.

BTW: the chapters on how the IDE works and differences between Arduino and C are great!

I'll post a review on Amazon soon.

Cool, thanks.