add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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#!/bin/sh
echo AT+CHUP | bluealsa-rfcomm --hci=hci0 $( hcitool con | sed -n 2p |busybox tr -d "\n" | busybox cut -b 8-25)