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I want to connect my 433.92MHZ transmitter to my Pi.

The problem is, it's 50" away from my pi, and the only cables I can find online are 20 cm (8") long cables.

I've thought about creating the cable myself from a 230V electric cable, but then I also couldn't find the little connectors to put on the end.

And if I'm lucky, I would like the cable a three-in-one, because the transmitter needs 3 cables, and it would look better (because the transmitter is in my living room) if there is just one cable (like a three wire electricity cable, that is what I mean with three-in-one)

Hope this question in my limited English makes sense ;-)

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    what signals are you sending down the cable? If it's anything high-speed you will need not be able to drive a plain cable that long, and should look at either converting to a differential pair (and even then you have limits, e.g. USB is differential but limited to 3 metres ); if it's just on and off every few seconds then it will be Ok. – Pete Kirkham Apr 18 '14 at 10:05
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    Those connectors are called dupont connectors. You could just rip them out of an old PC, and extend them using any 3-wire cable you can find in you local hardware store. – Gerben Apr 18 '14 at 10:27
  • @pete I think it's high speed, I'm not sure. I'm using a library class for it (). But the length is not a problem i think, because it is already running at this cable length, but now I'm using 6 pieces of rainbow colored 20cm M/F cables connected together, and that doesn't look pretty. – Michel Apr 18 '14 at 10:56
  • @Gerben thanks for the name 'Dupont'. that got me started on google! – Michel Apr 18 '14 at 14:41
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    If you want, I can send you some. As we live in the same country, it's only a single stamp. It's slightly more difficult without a dupont-crimping tool, but doable. – Gerben Apr 18 '14 at 14:49
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You just need 26way ribbon cable. You can find 26way ribbon cable in various lengths on Ebay. 1m, 5m, 30m.

That link for the 1m lengths looks like they sell by the meter, so if you order 2m then you'll get a 2m length, not two individual meter lengths. I'd recommend checking with them before you order though.

For hooking up the connectors, they're simple clip fits. Instructions on connecting the connectors to the ribbon cable.

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