View source for Make an OpenWRT WebRadio with Wr703n


=Overview=

This will build a small webradio that plays a radio from the web as soon as powered up.

We will play this radio below for the example. 

http://media-ice.musicradio.com:80/ClassicFM

More radios addresses can be obtained from these sites below.<br>
http://www.listenlive.eu/<br>
https://www.internet-radio.com/

=Hardware=

1 
[http://lechacalshop.com/gb/various/5-wr703n-openwrt-ready-web-interface.html WR703N] Note the unit must have 16MB flash. Default factory units won't work.<br>
1 USB to audio adaptor
[[File:UsbaudioAdaptor.jpg | 125px]]

=Operating System=

We will use OpenWRT LEDE 17.01.

Network setup will not be covered here. We assume the unit has access to the internet.

=Install Packages=

First run 

 $ opkg update 

Then install packages

 $ opkg install kmod-usb-audio mpc mpd

Note: Some websites mention installs of kmod-sound-core kmod-usb-ohci alsa-utils. We did not find these to be needed for our purpose.

=Setup Mpd=

Edit the /etc/mpd.conf file. (Sound quality will be poor if not using alsa)

 $ vi /etc/mpd.conf

Uncomment the lines to use alsa. These can be found from line 208. The text should look as this below:

 # Audio Output ################################################################
 #                                        
 # MPD supports various audio output types, as well as playing through multiple
 # audio outputs at the same time, through multiple audio_output settings    
 # blocks. Setting this block is optional, though the server will only attempt
 # autodetection for one sound card.                                       
 #                                                                 
 # An example of an ALSA output:
 #                                                 
 audio_output {
         type            "alsa"                                            
         name            "My ALSA Device"                               
         device          "hw:0,0"        # optional                    
 ##      mixer_type      "hardware"      # optional                         
 ##      mixer_device    "default"       # optional
 ##      mixer_control   "PCM"           # optional
 ##      mixer_index     "0"             # optional
 }
 #

Now restart mpd
 $ /etc/init.d/mpd restart

=Play the stream=

Make sure the usb-audio dongle is connected.

DO NOT TEST THIS WITH EARPLUGS. Volume is 100%. Use speakers with volume control at minimum first.

Then run these two commands below:
 $ mpc add http://media-ice.musicradio.com:80/ClassicFM 
 $ mpc play

Once this works you can stop it with 
 $ mpc stop

=Start playing at boot time=

Edit the /etc/rc.local.
 $ vi /etc/rc.local

We will now need to add the 2 lines and a small loop to make sure internet is on. The file should look like so below.

 # Put your custom commands here that should be executed once
 # the system init finished. By default this file does nothing.
 
 # Wait until we have internet connection.
 while true; do
   ping -c1 google.com && break
   sleep 1
 done
 
 # Add the radio stream and play it
 mpc add http://media-ice.musicradio.com:80/ClassicFM
 mpc play
 
 exit 0

Reboot the device to make sure it plays when booted.

 $ reboot & exit

=Other resources=

A good and simple client player from a web browser:
https://github.com/sn0opy/MPD-Webinterface