add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

1
2
# Locally computed:
sha256  5a79c7516ff7560dffc6a14399a389432bc619c905b13d3b73da22fa65acede0  madplay-0.15.2b.tar.gz