Add details on how to setup splash screens for startup / shutdown / halt

docs/README.md

@@ -31,3 +31,4 @@ Items marked ```REQUIRED``` are assumed to be setup and working. You've been war
 * [SyncThing (Picture Sync)](syncthing.md)
 * [rclone (Picture Sync)](rclone.md)
 * [Resource Monitoring](munin.md)
+* [Fun Splash Screens](splash_screens.md)

docs/splash_screens.md

@@ -0,0 +1,86 @@
+# Splash Screens
+
+The below will get you setup with splash screens for boot, shutdown and halt events on your PiFrame.
+
+You will need to obtain your own images for these screens. Please adjust the following accordingly.
+
+## Further Reading / Inspiration
+
+* https://www.madebymany.com/stories/fun-with-systemd-running-a-splash-screen-shutting-down-screens-and-an-iot-product-service-with-python-on-raspberry-pi
+* https://yingtongli.me/blog/2016/12/21/splash.html
+* https://learn.adafruit.com/pitft-linux-python-animated-gif-player/python-code
+
+
+``` sh
+
+cat > /etc/systemd/system/fim.service <<EOF
+[Unit]
+Description=fim slideshow
+After=getty.target
+
+[Service]
+User=fim
+ExecStartPre=-/usr/bin/killall fim
+ExecStart=/usr/local/bin/fim-slideshow.sh
+Restart=always
+RuntimeMaxSec=604800
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+cat > /etc/systemd/system/boot-logo.service <<EOF
+[Unit]
+Description=boot splash screen
+DefaultDependencies=no
+After=local-fs.target
+
+[Service]
+User=fim
+ExecStart=/usr/bin/fim --verbose --no-commandline --no-history --device /dev/fb0 --vt 1 --execute-commands-early "clear" --execute-commands 'display;sleep "300";quit;' --autozoom /home/fim/noun_startup_749601.png
+Type=exec
+
+[Install]
+WantedBy=sysinit.target
+EOF
+
+cat > /etc/systemd/system/shutdown-logo.service <<EOF
+[Unit]
+Description=show image on starting shutdown
+DefaultDependencies=no
+Before=halt.target poweroff.target reboot.target shutdown.target
+
+[Service]
+User=fim
+ExecStartPre=-/usr/bin/killall fim
+ExecStart=/usr/bin/fim --verbose --no-commandline --no-history --device /dev/fb0 --vt 1 --execute-commands-early "clear" --execute-commands 'display;sleep "300";quit;' --autozoom /home/fim/noun_landing_1746270.png
+Type=exec
+
+[Install]
+WantedBy=halt.target poweroff.target reboot.target shutdown.target
+EOF
+
+cat > /etc/systemd/system/halt-logo.service <<EOF
+[Unit]
+Description=safe-to-power-off image
+DefaultDependencies=no
+After=umount.target
+Before=final.target
+
+[Service]
+User=fim
+ExecStartPre=-/usr/bin/killall fim
+ExecStart=/usr/bin/fim --verbose --no-commandline --no-history --device /dev/fb0 --vt 1 --execute-commands-early "clear" --execute-commands 'display;sleep "300";quit;' --autozoom /home/fim/noun_unplug_601044.png
+Type=exec
+
+[Install]
+WantedBy=halt.target halt.target poweroff.target reboot.target shutdown.target
+EOF
+
+systemctl daemon-reload
+systemctl enable fim.service
+systemctl enable boot-logo.service
+systemctl enable halt-logo.service
+systemctl enable shutdown-logo.service
+
+```