Hi!,

I just started to play around with the XIAO BLE.

I got it to work with PlatformIO using this: https://medium.com/@alwint3r/working-with-seeed-xiao-ble-sense-and-platformio-ide-5c4da3ab42a3

It's basically:

• copy over the fork from seeedstudios mbed core to here: packages\framework-arduino-mbed
• and create a new board definition.
• also, add 2 lines to platformio.py.

I did a diff over the seeedstudio fork and it basically just adds their board variants without changing too much.

Would it be possible to do this also for the official platform-nordicnrf52 core? I don't understand the PlatformIO structure enough to create a custom core or something like that.

I can provide working code for BLE as well as the modified "packages\framework-arduino-mbed" and "platforms\nordicnrf52"