add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# Locally computed
sha256    78f8291045c6f65b4827b12e83c8e68cea2d5e7268b15a51aaca9726c8100eb9    pulseview-0.4.0.tar.gz