```cpp
chessLink -> switchUploadMode();
```
- is not required to turn on LED's or make beep. I think it is for uploading games to
the internal memory
see READ.md, you have to use a udev rule in order to use the chessboard.
https://github.com/rmarabini/chessnutair
Big shoutout to rmarabini for doing the exccelent bluetoth work, a makeing it free as in freedom