add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# Locally calculated
sha256    35fb44daa41961f94a0ac1b8f06801e88cc9bf2ad6f562ced8ab7c1f1a875499    libebml-1.3.3.tar.bz2