XIAO Expansion board CAD file

Hi Folks,

I was wondering is somebody would have got hold of the CAD files of the Seeed Studio XIAO Expansion board ?

I found the schematic:

but I did not find the CAD files.

Thank you.


It’s burred amongst the wiki examples
Expansion BRD file

GL :slight_smile: PJ


@PJ_Glasso Would you know how to get hold of the CAD file of the Seeed Studio XIAO nRF52840 Sense too by chance?

I could only find the schematic and the footprint:


That would be much appreciated.

Thank you!

My knowledge is based on the information available up until September 2021. Therefore, I can’t provide you with current information on whether someone has obtained the CAD files for the Seeed Studio XIAO Expansion board.
Medical bed
To determine if the CAD files for the Seeed Studio XIAO Expansion board have been made available, I recommend visiting the official Seeed Studio website or contacting their customer support directly. They should be able to provide you with the most up-to-date information on the availability of CAD files for their products.

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@PJ_Glasso provided me with the link to the Expansion board’s CAD file.


But I was looking for the Seeed-Studio-XIAO-nRF52840-Sense CAD file too.
Seeed provides the schematic and footprint but I did not find the detailed CAD file.
Maybe I will contact their support as you suggested.

@pdfslug So I contacted Seeed support.

They replied to me:

If the file you want is not here, then we cannot provide it either.

The thing is that they actually provided the CAD file of the XIAO Expansion Board here (under “Resources”):

So why they did not provide the CAD file of the Studio XIAO nRF52840 Sense,
this I don’t know.

I asked them.
I’ll see what they reply.
But I don’t think they will provide it.

Hey there I just uploaded my version of the CAD Model of the nRF52840 (Sense) to Grabcad.
I tried my best to stay accurate but there is no guarantee for 100% accuracy.

I hope this helps!

Thanks Maurice.
This is really cool to have a 3D view of the Studio XIAO nRF52840 Sense.

But what I’m looking for is the CAD file of the board components.
Like the equivalent of this file for the Studio XIAO nRF52840 Sense:


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I see, there is only one thing that I can think of which might help you:

If you scroll down quite a bit you will find the bottom and top .dxf of the nrf Board. Combined with the Schematic if should be fairly easy to reproduce this in Altium designer or similar.

The only thing that the .dxf and the schematic does not contain is the information about the traces of the PCB.

EDIT: Sorry I just read the whole thread and figured out that you already know about the Link.
I hope you get an answer from them and if you get your hands on the PCB CAD file, you could maybe share it here with us :slight_smile: Would be very nice to have.



Seeed support replied to me with the Seeed Studio XIAO nRF52840 (Sense) board and schematic CAD files. I’ve got the files but they say they will update the wiki with the files later.

To avoid any unwanted leak of information, I will not post the files here.
The files will probably be available here soon:

That’s amazing, I just asked for these documents and they agreed to make them public :sunglasses:

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