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I want to wire Arduino Due connectors to a breadboard 8-at-a-time, so they're easier to remove and more reliable.

I tried these Flat Flex Cable Assemblies (FFC assemblies) terminated with "solder lugs" from Digi-Key, but the pins are just a little too short to penetrate the Arduino connectors well. Similarly they barely reach into to the breadboard contacts, so they tend to fall out. Anyone find a workable product for this?

enter image description here Flat Flex Cable Assembly

This solution is good but requires a lot of manual soldering. Looking for prepackaged.

  • For now, you could solder some male headers to those flatflex cables, making them easier to work with. – Gerben Jul 8 '14 at 13:52
  • When I had to breadboard 8-bit computer projects, I'd wire all the busses with 4 colors of discrete hookup wire used in spectral order. That way if anything came out it was easy to tell where it should be reconnected. (I also tied the bundles down with little jumpers in the supply rows or unused rows, but that wouldn't apply here). – Chris Stratton Jul 8 '14 at 13:58
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    youtube.com/watch?v=GkbOJSvhCgU looks like being a possible solution. – gone Jul 8 '14 at 16:10
  • You may be onto something, @yeti. Male-to-male pre-crimped wires for 0.1" spacing connectors. pololu.com/product/1808 – Bob Stein Jul 8 '14 at 16:56
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Search for male-male jumper wire. Some of what you'll find is individual wires but there are also many that are connected together and you can rip off the width you need.

Here's one from Adafruit but there is no shortage of them on ebay/amazon. enter image description here

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  • Thanks, Sachleen! Are any of them spaced at fixed 0.100" centers? I am actually now using breadboard jumper wire and it works fine, but I was hoping for quicker interchange, something that didn't require error-prone unplugging and plugging dozens of individual wires. – Bob Stein Jul 7 '14 at 18:36
  • Not that I know of. I've seen some that are groups of four wires but they aren't specifically designed as breadbaord jumper wires but for a specific product. – sachleen Jul 8 '14 at 7:32
  • Bought a handful from China to try out. – Bob Stein Jul 8 '14 at 17:27
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Again similar to Sachleen's answer. You can crimp your own connectors onto a ribbon cable, that way you can have the desired header size.

I've just done this manually with some pliers (I couldn't afford the crimping tool) a bit tricky but I'm pleased with the results. I got all of the bits I needed from www.hobbytronics.co.uk. Anywho I'm happy with the results now after a few failed attempts.

You can see my attempts here

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  • Very close, Nick J Adams. Thanks to a tip from @yeti I just bought some pre-crimped wires from Pololu and some 0.1" headers to try out. It looks as if you are using headers here that space the contacts 0.1" apart? – Bob Stein Jul 8 '14 at 17:26
  • Yes that's right, so would work on a breadboard, perf board and of course Adafruit's combination of both as shown in the photo. – Nick J Adams Jul 17 '14 at 12:09
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Although Sachleen's answer is preferable in a lot of situations, there are a few other options that you have.

Quick note on his answer: I find clamping a row of those wires together and rubbing a thin line of superglue over the connectors a useful way to keep them together. It's not very neat, but it works pretty well and, with that many wires connected, can make it more stable than before.

There are two main alternatives I see:

  • Ribbon cable: very similar to the wires pointed out in Sachleen's answer, only the connectors come already as one piece.

    Source: http://www.adafruit.com/blog/wp-content/uploads/2012/06/window-207.jpg

    They are typically two rows, but I've seen them before with one (although pretty rare). You could just ignore one row of those and use some male headers to connect the same side of the ribbon cable to the breadboard/Due.

  • DIY: although you said that you didn't like soldering, it's still the best solution here IMHO. You'll need soldering later on, and breadboards aren't reliable beyond just simple development, so you'll need to learn at one point or another. This is a great entry project because it's pretty hard to mess a simple thing like this up, unless you accidentally bridge two joints. However, you won't damage an expensive chip if you mess up (which you will on the first few times you solder), you can just clean the joints and start over.

    Anyway, just grab some perf board and some wire (twisted pair (similar to CAT5e)/ribbon cable with or without an adapter and plug/loose wires, and a few rows of male headers. The type of wire you choose doesn't really matter, just don't get something too thick or too thin. Anyway, solder some headers to the perf board and then you can solder the wires/the socket (if you choose a ribbon cable with ends) together. You can then cut the perf board to size (you can do this step before soldering) and you're done!

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  • Close, mister penguin. Good suggestion with the inserted headers. DigiKey has plug-to-plug ribbon cable assemblies for $8 each. – Bob Stein Jul 8 '14 at 17:14
  • And now I understand what you mean about the superglue-variant on @sachleen 's answer. Do they end up 0.1" apart when you do that? – Bob Stein Jul 8 '14 at 17:24
  • @BobStein For the ribbon cable, that's definitely a cleaner and easier variant, but it does cost a little more (especially costing experience with soldering). As far as the superglue, yes, mine did fit perfectly with some 0.1" headers. I didn't try with a breadboard, but the headers are the same spacing as a standard 2.54mm breadboard. – Anonymous Penguin Jul 8 '14 at 20:25

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