====== Sound Monitor ======


===== PC =====

==== Prerequisite ====

<code>
sudo apt-get install netdiscover rrdtool cifs-utils

# generate ssh keys
ssh-keygen
</code>

gedit preferences -> editor
<code>
tab width: 4
check insert spaces instead of tabs
</code>


Discover RADXA
<code>
sudo netdiscover
...
192.168.2.44    ac:a2:13:42:1c:14 Shenzhen Bilian electronic CO.,LTD
...
</code>

Upload key to RADXA (password is rock)
<code>
ssh-copy-id rock@192.168.x.y
</code>

==== Connect ====

Connect to RADXA
<code>
# user rock, password rock
ssh rock@192.168.x.y
</code>

connettersi alla rete WIFI (vedi sotto)
==== Graphs ====

Mount remote share
<code>
mkdir /tmp/monitor
sudo mount -t cifs -o uid=valerio,guest //192.168.2.44/monitor /tmp/monitor
cd /tmp/monitor
</code>

Edit 
<code>
gedit /tmp/monitor/monitor/capture.py
</code>

Generate graph
<code>
ssh rock@192.168.2.44 monitor_graph
</code>


===== RADXA =====

  * [[http://wiki.radxa.com/Rock/specificationù|radxa pro]]
  * battery CR1220 3V

==== Python monitor ====

Project is in **/home/rock/monitor**

run program in devel mode
<code>
# console sul radxa (ssh rock@192.1689.x.y)
sudo systemctl stop monitor

# start in foreground
monitor_run

# stop with CTRL+C
</code>

edit code
<code>
nano ~/monitor/monitor/capture.py
</code>

==== WIFI ====

<code>
sudo nmcli device wifi connect <ssid> password <password>
sudo reboot
# staccare la ethernet
</code>

==== Service ====

/etc/systemd/system/monitor.service
<code>
[Unit]
Description=Monitor

[Service]
Type=simple
User=rock
ExecStart=/usr/local/bin/monitor_run
After=network.target
Wants=time-sync.target

[Install]
WantedBy=multi-user.target


</code>


Enable
<code>
systemctl enable monitor.service
</code>