Hey Eric:
When we want to do a changeable/removable Project Board setup, we solder a 2 x 13 male header on the Project Board itself and then plug that into a 2 x 13 female socket. Then we solder the necessary wires to the female socket. See the attached photo.
Strangely, we don't have these parts for sale in the online shop, though they do come with the Arduino Shield kit. We'll get them up so that our users can order them.
If you can still use these parts and if we can get them to you in time, we'd be happy to send them to you. Send us a note at info[at]foxonix.com
- Will @ foxonix
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@foxonixdev