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• Modification to use an Orange Pi Zero

  hobbie • 05/28/2017 at 19:21 • 0 comments

  To use the script on an orange pi zero, few modifications need to be made :

  First use a different player : MPG123 is good

  sudo apt-get install mpg123

  in the script : use mpg123 instead of omxplayer :

  #omxplayer $FILNAME
  mpg123 $FILNAME

  As the player is compatible with alsa, add a line to set the volume in the 7-9_player.sh (anywhere before starting the player) :
  

  amixer sset 'Lineout volume control' 65%

  
  

  Without the extention board, the audio output is not filtered, a RC filter might be needed.

  The wifi configuration has to be set manually :

  sudo nano /etc/network/interfaces
  #----------------------------------
  #COPY
  #----------------------------------
  auto lo
  iface lo inet loopback
  
  auto eth0
  allow-hotplug eth0
  iface eth0 inet dhcp
  
  allow-hotplug wlan0
  iface wlan0 inet manual
  wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
  iface default inet dhcp
  #---------------------------------
  #Ctrl + O
  #Enter
  #Ctrl + X
  sudo nano /etc/wpa_supplicant/wpa_supplicant.conf
  
  #----------------------------------
  #COPY
  #----------------------------------
  ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
  update_config=1
  
  network={
  ssid="WIFI_MaBox"
  psk="------------------"
  }
  
  #----------------------------------
  #Change based on your WiFi Settings
  #Ctrl + O
  #Enter
  #Ctrl + X
  sudo reboot

• Script explanation

  hobbie • 04/07/2017 at 21:41 • 0 comments

  Put the current day, month, year in a string using the format dd.mm.yyyy
  

  DATE=`date +%d.%m.%Y`
  

  Select the script directory, the user must have the write permition so it won't crash when launched by CRON
  

  cd /home/pi/Documents/
  

  Remove the old rss file, you don't want to use outdated data
  

  rm rss_10241.xml
  

  Get the new rss file, it will be saved as rss_10241.xml in the active directory (that's why we need writing right)

  The podcast file will have a new name everyday, this name will include the date.

  wget http://radiofrance-podcast.net/podcast09/rss_10241.xml
  

  Create a pattern to find the podcast in the rss file, note that alnum is used because those numbers can't be deducted from the date (they appear to be random but increasing)
  

  FILENAME_PATTERN="10241-"$DATE"-ITEMA_[[:alnum:]]*-[[:alnum:]]*.mp3"
  

  Create a pattern to find the complete address of the pod cast
  

  PATTERN="http://media.radiofrance-podcast.net/podcast09/10241-"$DATE"-ITEMA_$
  

  Find the adress in the rss file using the pattern
  

  MP3_ADDRESS=`grep $PATTERN rss_10241.xml -o`
  

  Find the exact filename using the second pattern
  

  FILNAME=`grep $FILENAME_PATTERN rss_10241.xml -o`
  

  Get the file ! this can take a while depending of your internet speed
  

  wget $MP3_ADDRESS
  

  Wait until it's wake up time (badly made...)
  

  
  heure=`date +%H`
  while [ $heure -lt 9 ]
  do
  #echo "waiting hour"
  heure=`date +%H`
  done
  minute=`date +%M`
  while [ $minute -lt 30 ]
  do
  #echo "waiting minute"
  heure=`date +%M`
  done
  echo "running"
  

  Play the file, wake up, have breakfast,...
  

  omxplayer $FILNAME
  

  Clean before leaving, it's common courtesy
  

  rm rss_10241.xml
  rm $FILNAME
  

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