add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# Locally computed:
sha256  abe75855cc5616554ffd47134ad15291fe37ebbebf1a80b69cbde9d670f0e26d  openbox-3.6.1.tar.xz