I recently posted tables that are in variants.cpp for board package 1.0.0 and 2.7.2 here:
Totally new in this and need a basic question answered… (How to map device pin with pin numbers in Arduino Code - Products & Technology / XIAO - Seeed Forum (seeedstudio.com)
Regards,
Dave
Footnote: I usually use solderless breadboards to connect CPUs and external circuity, but for various XIAO family modules I sometimes use the XIAO Expansion board. The test I mentioned in the previous post works either way. Have not had problems with BLE modules on the XIAO Expansion Board (or XIAO or XIAO rp2040 modules either).