add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# Locally calculated
sha256 267de7541c92e5b007b93c660a41188976d531a3757f4ffd9b7142d3994da7d1  lpc3250loader-1.0.tar.gz