I got some of these made and sadly the pins to the DK are in the wrong place (both P16 and P13).
It's possible to make it work by soldering in P20 and half of P13 (but not P16) and then shorting some pins, but it's not ideal.
I've attached a board with this fixed (I believe - it's not been made yet!), and with the holes changed such that you can stack two boards and then use E2 and B1 pogo pins from DirtyPCBs (which you can also order the PCB from).
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I got some of these made and sadly the pins to the DK are in the wrong place (both P16 and P13).
It's possible to make it work by soldering in P20 and half of P13 (but not P16) and then shorting some pins, but it's not ideal.
I've attached a board with this fixed (I believe - it's not been made yet!), and with the holes changed such that you can stack two boards and then use E2 and B1 pogo pins from DirtyPCBs (which you can also order the PCB from).
1 Attachment