Enabling mraa and uart in Rock 5b

Thanks @hannes-campidell I will do as per your instructions and Let you know if I hav any doubts.

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Hi, did you have any luck porting mraa to rock 5b?
I am a newbie, the only thing I saw in the mraa repository was a description of rock 5b pins, but no apt-get version of mraa, no own build , does not help.
The error output is that no board is defined.
How can this be solved or any tips on how to use ws1228 on rock 5b?

About ws1228, I tried via .sh script, but apparently the pin status update rate is not fast enough to send information to ws1228.