Shutdown scripts for moOde Audio

The default SSH user name is pi, password moodeaudio

The rest of the instructions are the same as for Raspbian, moOde audio is based on Raspbian.

• Key in :
  cd /etc
  sudo nano rc.local
• Copy and paste (use shift+ins to paste in nano) the following into the nano editor window, just above the last line (before the line exit 0)
  (/etc/irswitch.sh)&
• Press ctrl+x to exit the editor, y to confirm, enter to save the file
• Key in
  sudo nano irswitch.sh
• Copy and paste the following text into the editor window
  #!/bin/bash
  # this is the GPIO pin receiving the shut-down signal
  GPIOpin1=14
  echo "$GPIOpin1" > /sys/class/gpio/export
  echo "in" > /sys/class/gpio/gpio$GPIOpin1/direction
  while true; do
    sleep 1
    power=$(cat /sys/class/gpio/gpio$GPIOpin1/value)
    if [ $power != 0 ]; then
      echo "out" > /sys/class/gpio/gpio$GPIOpin1/direction
      echo "1" > /sys/class/gpio/gpio$GPIOpin1/value
      sleep 3
      sudo shutdown -h now
    fi
  done
• Press ctrl+x to exit, y to confirm, enter to save the file
• Key in
  sudo chmod +x irswitch.sh
  

The following additional script enables the RemotePi Board to cut off the power, after moOde audio has been shut down from the on-screen menu.

• Key in
• sudo nano /etc/shutdown.sh
• Copy and paste the following contents
• #!/bin/bash
  REBOOT_GREP=$(systemctl list-units --type=target | grep reboot)
  SHUTDOWN_GREP=$(systemctl list-units --type=target | grep shutdown)
  if [ "$SHUTDOWN_GREP" ] && [ ! "$REBOOT_GREP" ]; then
    # the condition above makes sure, that the shutdown sequence is not run on reboot 
    GPIOpin=15
    GPIOpin1=14
    echo "$GPIOpin" > /sys/class/gpio/export
    echo "out" > /sys/class/gpio/gpio$GPIOpin/direction
    echo "1" > /sys/class/gpio/gpio$GPIOpin/value
    sleep 0.125
    echo "0" > /sys/class/gpio/gpio$GPIOpin/value
    sleep 0.2
    echo "1" > /sys/class/gpio/gpio$GPIOpin/value
    sleep 0.4
    echo "0" > /sys/class/gpio/gpio$GPIOpin/value
    echo "$GPIOpin1" > /sys/class/gpio/export
    echo "out" > /sys/class/gpio/gpio$GPIOpin1/direction
    echo "1" > /sys/class/gpio/gpio$GPIOpin1/value
    sleep 4
  fi
• Press ctrl+x to exit, y to confirm, enter to save the file
• After saving the file, mark it as executable with
  sudo chmod +x /etc/shutdown.sh
• Key in
• sudo nano /etc/systemd/system/irswitch2.service
  
• Copy and paste the following text into the editor window
  [Unit]
  Description=RemotePi Board Shutdown Service
  Before=multi-user.target
  Conflicts=shutdown.target
  [Service]
  ExecStart=/bin/true
  ExecStop=/etc/shutdown.sh
  Type=oneshot
  RemainAfterExit=yes
  [Install]
  WantedBy=multi-user.target
• Press ctrl+x to exit, y to confirm, enter to save the file
• Key in
  sudo systemctl enable irswitch2.service
  
  
• Reboot one time
  
• After reboot you can use the RemotePi Board to power cycle moOde audio

The above scripts have been tested and are confirmed to work up to moOde audio 4.4. Although not yet tested, they most likely will work with newer versions as well.

This page was last updated 18-May-2019