Sound Monitor

PC

Prerequisite

sudo apt-get install netdiscover rrdtool

Discover RADXA

sudo netdiscover
...
192.168.2.44 ac:a2:13:42:1c:14
...

Connect to RADXA

# user rock, password rock
ssh rock@192.168.x.y

Copy database

scp rock@192.168.x.y:~/monitor/db.rrd /tmp

Generate graph

RADXA

Service

/etc/systemd/system/monitor.service

Enable

systemctl enable vgaoff.service