add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# Locally computed
sha256    3e6d1a82ac5c8b025a9695ce1e47d0dc6ed142ebb1129b1e4a70e2740f79150c    chocolate-doom-2.3.0.tar.gz