[LIME2] - How to wire/plug the 0.05 pins?

[hiol]

Hi,

I need to use the GPIO in a LIME2 but I don't know how to wire them.
The space between pins is rather small and everything I have tried fails.

I need to use 3 adjacent pins for the audio (yeah lime2... ) and 3 more disjoint.


I have seen the Olimex solutions but they are way too bulky for my needs:

https://www.olimex.com/Products/Components/Cables/CABLE-40-40-10CM/

https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME2-UEXT/open-source-hardware


So, how do you guys use these pins?


Cheers

[soenke]

i made 2 shields (left and right) with female headers soldered on the one side and SMD-spring clamps on the other to connect sensors, i2c, etc. You can also make it in one piece if you dont need the extra space.

I used the olimex A20-LIME2-shield as starting point for my boards.

[hiol]

The design looks very nice indeed.

Is there any possibility to buy them?

[soenke]

I dont think that you can buy them directly because without any further design they are useless. But it is really easy to use the free version of eagle and design a board by yourself by adding some connectors to the existing shield template.
Then use the PCB service of your choice, i mostly order here (good quality, fast service):

http://www.smart-prototyping.com

They also have these 40pin-smd-female headers you need. You just have to send them a mail first before ordering the PCBS.

[hiol]

Hi soenke,

Not sure about that cause I don't have that much time so I think I will solder those adjacent pins and I can get by with the other ones with stripping the housing from "dupont" cable & heat shrink sleeves.

Anyway If shield($) ~ SBC($) => bad treat.  I know they used male pins because the shield but female pins will be nicer at least you could use solid wire.

Cheers and definitely someone needs give it a "universal" solution.

[soenke]

you could also use only the female smt headers directly, their contacts might be easier to solder and you dont have to solder the wires directly to the board. And they only cost 1-2€.

[hiol]

Good idea!.

I changed the job and now I'm trying to port my x86 C++/C stuff to ARM not so trivial ...

Step by step.


I'll be all ears if someone else wants to expose his/her solution for the 0.05 inches pins.


Cheers