Inhoud

Schermen DJ-hok

Systeem

2 schermen via micro-HDMI verbonden met:

Client-app slideshow

Om te zorgen dat Maarten Zoetemeijer zelf ook posters op de schermen kan knallen gebruiken we op Android de app AndFTP en verbinden middels SFTP naar de Pi in de directory 

sftp://192.168.178.9/home/pi/Pictures

Inrichting RaspBerry Pi

Bijwerken en nodige packages erop

sudo apt update && sudo apt full-upgrade && sudo rpi-eeprom-update -a && sudo apt clean && sudo apt autoclean && sudo apt autoremove && deborphan
sudo apt install deborphan feh chromium vim mc unclutter

Adapt autostart

pi@raspberrypi:~ $ cat /etc/xdg/lxsession/LXDE-pi/autostart
@lxpanel --profile LXDE-pi
@pcmanfm --desktop --profile LXDE-pi
@xscreensaver -no-splash
 
# Toevoegingen KvhP
/home/pi/bin/untappd.sh
sleep 15
unclutter &
/home/pi/bin/slideshow.sh

Slideshow Photo's with `feh`

pi@raspberrypi:~ $ cat bin/slideshow.sh
#!/bin/sh
 
# autozoom full-screen "-Z" werkt niet; we staan niet full-screen maar op het rechter scherm
##feh -x --geometry 1080x1920+1080+0 -ZY -B black -Z --stretch --ignore-aspect -D 20 -r Pictures -R 300
 
# Vorige stand: 
feh -x --geometry 1080x1920+1080+0 -ZY -B black --scale-down --auto-zoom -D 20 -r /home/pi/Pictures -R 300

Untappd Bierkaart via Chromium Browser

pi@raspberrypi:~ $ cat bin/untappd.sh
#!/bin/sh
 
## untapped krijtbord
#/usr/bin/chromium --kiosk  --disable-restore-session-state http://business.untappd.com/boards/48272 &
## untapped foto
/usr/bin/chromium --kiosk  --disable-restore-session-state http://business.untappd.com/boards/59076 &

Daily reboot

Sinds de Pi op RaspBerry Pi OS 12 (“bookworm”) draait is dit niet meer nodig. 

crontab -e
pi@raspberrypi:~ $ sudo tail -2 /var/spool/cron/crontabs/pi
# m h  dom mon dow   command
8 18 * * * sudo shutdown -r now

SWAP

pi@raspberrypi:~ $ sudo dphys-swapfile swapoff
pi@raspberrypi:~ $ sudo vim /etc/dphys-swapfile
pi@raspberrypi:~ $ egrep 'MAXSWAP|SWAPSIZE' /etc/dphys-swapfile
##CONF_SWAPSIZE=100
CONF_SWAPSIZE=4096
#CONF_MAXSWAP=2048
CONF_MAXSWAP=4096
pi@raspberrypi:~ $ sudo dphys-swapfile setup
want /var/swap=4096MByte, checking existing: deleting wrong size file (2147483648), generating swapfile ... of 4096MBytes
pi@raspberrypi:~ $ sudo dphys-swapfile swapon
pi@raspberrypi:~ $ sudo reboot

Statisch IP

pi@raspberrypi:~ $ grep -A 3 "^interface eth0" /etc/dhcpcd.conf
interface eth0
static ip_address=192.168.178.9/24
static routers=192.168.178.1
static domain_name_servers=192.168.178.1 8.8.8.8 8.8.4.4

Disable compositor

sudo raspi-config