Asking for The definition of pins on Rtl8822cs

BPI-M5/BPI-M2 Pro/BPI-M2S/BPI-CM4/BPI-CM5
1

I want to know if the ten holes on the board have any functions… There is no documentation available. Just wondering if I can add more firms on the board.

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I’ve marked on the pic.

2

Just connect to 40PIN

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3

You mean it is possible to directly add more things on the top despite the BT/Wifi board？