Dedalus
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Low Profile Header Connectors?

Sat Apr 12, 2014 8:51 am

I'm trying to build a project with and extra circuit board that needs to be connected to the Pi via the P5 header within a Cytech case, but I'm tight for space.

Connecting the boards with patch cables with connectors like this stand too tall to fit in the case, and soldering the wires directly is much too fiddly.

Image

Are there any other alternatives?

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Richard-TX
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Re: Low Profile Header Connectors?

Sun Apr 13, 2014 3:49 am

Wirewrap is one option. When I am tight for space, it is my go-to methodology..
Richard
Doing Unix since 1985.
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Richard-TX
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Re: Low Profile Header Connectors?

Sun Apr 13, 2014 3:52 am

Here is how one fellow does it with his arduino.

Image

http://goodwires.wordpress.com/tag/awg30/
Richard
Doing Unix since 1985.
The 9-25-2013 image of Wheezy can be found at:
http://downloads.raspberrypi.org/raspbian/images/raspbian-2013-09-27/2013-09-25-wheezy-raspbian.zip

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jbeale
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Re: Low Profile Header Connectors?

Sun Apr 13, 2014 5:07 am

nice use of wire-wrap!

There is also a special type of connector that can get an even lower-profile solution, as used on the "Pi-Crust" http://picru.st/ connector board from Pi Supply. Unfortunately, as the review points out, the connector does stick out sideways a bit, so it will not quite fit inside most cases (unless you mill a slot in it adjacent to the GPIO pins.)
http://smittytone.wordpress.com/2014/03 ... -pi-crust/
https://www.modmypi.com/pi-crust
https://www.kickstarter.com/projects/pi ... our-raspbe
Image

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DougieLawson
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Re: Low Profile Header Connectors?

Sun Apr 13, 2014 7:28 am

http://rasp.io/
With a http://rasp.io/breakout/ you could create your connections without using header pins at all. Screw terminals may be best (for reusability) but you could solder wires directly to the rasp.io board.
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Dedalus
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Joined: Sat Jan 19, 2013 11:56 pm

Re: Low Profile Header Connectors?

Sat May 03, 2014 7:19 pm

Thanks for the suggestions, but I'm so tight for space, that any other breakout board would not be possible. And I'd be worried about shorting with the wound connectors in such a small space.

We're talking this:

Image

plus this:

Image

Inside one of these:

Image

I've looked at screw- and screw-less terminals, but they seem very expensive for what they are, and I'm not sure they'd fit in the space.

Does anyone have any other ideas?

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Gert van Loo
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Re: Low Profile Header Connectors?

Sun May 04, 2014 6:11 pm

What about flat-cable with a female header?

I did a video about how to make one a while ago: http://www.youtube.com/watch?v=sMiRoXY_oZg

Dedalus
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Joined: Sat Jan 19, 2013 11:56 pm

Re: Low Profile Header Connectors?

Sun May 04, 2014 7:32 pm

Gert van Loo wrote:What about flat-cable with a female header?

I did a video about how to make one a while ago: http://www.youtube.com/watch?v=sMiRoXY_oZg
This could be the way! Great video, thank you. I had no idea how those things worked.

I have some old ribbon cable, so I'll give this a go.

Looks like I'll still have to solder the wires at one end as the connections from the P5 header do not directly correlate to to the board connector (I think).

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