add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# Locally calculated after checking signature
sha256 294a690c1f537b92ed829d867bee537e46be93fbd60b16c04630fbbfcd9db3c2  npth-1.5.tar.bz2