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<pre>
echo 1 > /sys/class/leds/base\:blue\:led0/brightness
echo 0 > /sys/class/leds/base\:blue\:led0/brightness
echo 1 > /sys/class/leds/base\:red\:led0/brightness
echo 0 > /sys/class/leds/base\:red\:led0/brightness
</pre>
Then you can easily play a *.wav sound with the application Aplay, for example:
$ aplay /media/root/rootfs/usr/share/sounds/alsa/Side_Left.wav
== Get sound in (audio in) ==
In this example, we will connect to an Access Point.
* First of all, we must disable Soft Blocking on the wlan0 interface via rfkill:
<pre>rfkill unblock 0all</pre>
* Then we can set the interface up:
:To start the supplicant, we specify the interface, the configuration file and the driver to be used. In this case:
<pre>wpa_supplicant -Dnl80211 -i wlan0 -c /etc/wpa_supplicant.conf&</pre>
:*On the other hand, if it is a WEP secured Access Point, you must enter the next command. If your AP doesn't have a password, omit the key part:
Then you can easily play a *.wav sound with the application Aplay, for example:
$ aplay -D plughw:1,0 /media/root/rootfs/usr/share/sounds/alsa/Side_Left.wav
== Secondary HDMI (DVI connector on J501) ==
