Misc-Notes.md 2.4 KB
Misc. Notes
2019-11-01
Custom Splash Screen
In /boot/config.txt, add:
disable_spash=1
optionally:
disable_overscan=1
In /boot/cmdline.txt, add:
logo.nologo consoleblank=0 loglevel=1 quiet
By hand run
systemctl disable getty@tty1
apt install fbi
Create /etc/systemd/system/splashscreen.service:
[Unit]
Description=Splash screen
DefaultDependencies=no
After=local-fs.target
[Service]
ExecStart=/usr/bin/fbi -d /dev/fb0 --noverbose -a /opt/splash.png
StandardInput=tty
StandardOutput=tty
[Install]
WantedBy=sysinit.target
With /opt/splash.png
Might need to kill fbi when starting the kiosk.
Packages
sudo apt install -y sox espeak mplayer ffmpeg alsa-utils
Sound
Use raspi-config to force audio through the 3.5mm audio jack.
There's an issue with the HDMI 'going to sleep' and cutting off the first two seconds of the audio if nothing is being played through it. The 3.5mm jack seems to not have that issue.
The 3.5mm jack has a lot of noise on the line. The fix looks to be using a USB speaker. For now we'll go with the 3.5mm jack but this will eventually need replacement.
Monitor
To get monitor resolution:
fbset -s
System Setup
Make sure the following are installed:
apt install -y espeak mplayer
Enable ssh server (for debugging and setup):
systemctl enable ssh
systemctl start ssh
Run raspi-config and select option 4 for the screen (640x480 @ 60Hz):
raspi-config
Make sure to manually set volume on the waveshare screen (default is set at 50) from the buttons provided on the left.
Remove libreoffice to free up space (around 0.5Gb):
apt remove -y libreoffice libreoffice-base-core libreoffice-common libreoffice-core libreoffice-help-common libreoffice-help-en-gb libreoffice-help-en-us libreoffice-l10n-en-gb libreoffice-style-colibre libreoffice-style-tango
apt autoremove -y --purge