add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# From http://debian-knoppix.alioth.debian.org/packages/sources/cloop/cloop_2.634-1.dsc
sha256    d6d03e2368e19f9c6c3a313e9c34cf0620d129ce26132a8805580d953769dbbd    cloop_2.634-1.tar.gz