setup-2020

#!/bin/bash
### The setup can be simpler at the end of the year 2020. Now using only /etc/rc.local to start at boot.
### Prepare a fresh Raspbian Lite install, which uses less card space and boots faster.
### Edit /boot/config.txt for sound over HDMI and/or removing white noise, if you want a DVI monitor to
### work you need to have analog sound over the 3,5 mm jack by setting hdmi_drive=1 and commenting with
### a "#" hdmi_force_edid_audio=1 and before that you need to set a resolution, I use 1280 x 1024 @ 60Hz:
####### hdmi_group=2
####### hdmi_mode=35
####### hdmi_drive=2
####### hdmi_force_edid_audio=1
####### hdmi_force_hotplug=1
### Install programs required by bshplyr-delete-raspbian-lite that are not installed by default in Rasbian Lite:
### espeak-ng - use "espeak" to report that the song is deleted
### mpv - very good as audio player on a low resources board
### This are the commands to install them:
apt update
apt install -y espeak-ng mpv
### Create files and folders:
sleep 1
sync
sleep 2
echo "1" > /root/savedsong
echo "70" > /root/volumelevel
mkdir -p /root/music
mkdir -p /usr/bin
#mkdir -p /etc/systemd/system/
echo ""
echo "Copying files."
echo ""
# The playlist is done at each boot by the script and the last song is remembered
cp bshplyr-delete-raspbian-lite /usr/bin
chmod +x /usr/bin/bshplyr-delete-raspbian-lite
# Using /etc/rc.local for starting the music player, Rpi OS has /etc/rc.local active
cat <<EOF > /etc/rc.local
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi
/usr/bin/bshplyr-delete-raspbian-lite &
exit 0
EOF
chmod +x /etc/rc.local
sleep 1
sync
sleep 2
echo "Done. You can copy some music in /root/music and start listening after boot."
echo ""
##################################################################################
# Take sdhc card to abother computer, sudo copy music to mounted /root/music, put back in your
# Raspberry PI and only plug your stereo headphone/speaker jack and power, with at least
# GPIO pin 17 ready to pull to 3.3v with 10kohm for shutting down safely
# To be portable use a laptop battery witch provides at least a day autonomy through a GPS car charger
# to power the Raspberry Pi and disable USB/LAN chip (uncomment battery section in bshplyr for model B).