✎ projekte:hausautomatisierung:openhab:display [Binary Kitchen]

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====== OpenHab Display ======
===== Basisinstallation =====

* Kopieren des Rasbian Lite Images auf SD Karte
    * Erstellen der Datei ''ssh'' im ''boot'' Verzeichnis
    * Erster Login mit USB Tastatur mit ''pi'' und ''raspberry''

$ sudo -i
	$ adduser thomas
	$ addgroup thomas sudo
	$ logout

* Login via ssh und dem Benutzer thomas

$ sudo -i
	$ deluser pi
        $ apt update
        $ apt upgrade
	$ apt-get install vim
	$ update-alternatives --set editor /usr/bin/vim.basic
	$ dpkg-reconfigure tzdata

* Root Shell farbig machen:

$ vi ~/.bashrc
	>>> PS1='${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]$ '
Ebenfalls aliase und export einkommentieren.
Mit User thomas anmelden und in ''.bashrc'' ''force_color_prompts=true'' einkommentieren.

* Falls der Bildschirm um 180Grad gedreht ist, die Zeile ''lcd_rotate=2'' an die Datei ''/boot/config.txt'' anfügen

* X-Server installieren

$ apt-get install xserver-xorg-core xserver-xorg-video-fbdev xserver-xorg-input-libinput x11-xserver-utils slim

* Remove the mouse cursor

$ apt-get install unclutter

* Chromium Browser

$ apt-get install chromium-browser libgtk-3-0

* Add user and configure Auto Login

$ adduser --disabled-login openhab
	$ vi /etc/slim.conf
		default_user openhab
		auto_login yes
	$ vi /home/openhab/.xsession
<code bash>
#!bin/bash
/usr/bin/xscreensaver -no-splash &
/usr/bin/redshift -l49.1:12.6 -b 0.5 &
/usr/bin/xterm -e true
sleep 1
/usr/bin/chromium-browser --window-size=1910,1080 --noerrdialogs --disable --disable-translate --disable-infobars --disable-suggestions-service --disable-save-password-bubble --disable-internal-flash --disable-plugins-discovery --kiosk --touch-devices=6 --app=https:/pizza.binary.kitchen/basicui/app?sitemap=mainroom
</code>

use the following for the workshop display:
<code>
#!bin/bash
/usr/bin/xscreensaver -no-splash &
/usr/bin/redshift -l49.1:12.6 -b 0.5 &
/usr/bin/xterm -e true
sleep 1
/usr/bin/chromium-browser --window-size=800,480 --noerrdialogs --disable --disable-translate --disable-infobars --disable-suggestions-service --disable-save-password-bubble --disable-internal-flash --disable-plugins-discovery --kiosk --app=https:/pizza.binary.kitchen/basicui/app?sitemap=workshop
</code>

* Blank Screen after timeout

$ apt-get install xscreensaver

* Run as root:

$ export DISPLAY=:0
	$ sudo -u openhab xscreensaver-demo

And configure the screensaver with
        * Mode: Blank Screen Only
        * Blank after: 1 Minute
        * Power Management Enabled
        * Standby After 1 minutes
        * Suspend after 1 minutes
        * Off After 1 minutes

$ sudo apt install xinput-calibrator
	$ export DISPLAY=:0
	$ sudo -u openhab xinput_calibrator

Paste the output to 
	$ vi /etc/X11/Xsession.d/99-calibration.conf

===== Scripts installieren =====

$ vi /home/openhab/check_network.sh
<code bash>
#!/bin/bash

HAB_STATUS=0

while true
do
        if curl -s --head https:/pizza.binary.kitchen/basicui/app?sitemap=mainroom | grep "200 OK" > /dev/null
        then
                if [ "$HAB_STATUS" -eq 0 ]
                then
                        echo "Site Changed from Down to Up"
                        HAB_STATUS=1

# Refresh Browser
                        export DISPLAY=":0"
                        WID=$(xdotool search --onlyvisible --class chromium|head -1)
                        xdotool key ctrl+F5
                fi
        else
                echo "Site Down"
                if [ "$HAB_STATUS" -eq 1]
                then
                        echo "Site Changed from Up to Down"
                        HAB_STATUS=0
                fi
        fi

sleep 60
done
</code>

$ vi /home/openhab/refresh_chrome.sh
<code bash>
#!/bin/sh

export DISPLAY=":0"
WID=$(xdotool search --onlyvisible --class chromium|head -1)
xdotool key ctrl+F5
</code>

$ apt install xdotool
    $ chmod a+x /home/openhab/refresh_chrome.sh
    $ chmod a+x /home/openhab/check_network.sh
    $ crontab -e -u openhab
<code>
0 11 * * * /home/openhab/refresh_chrome.sh
@reboot /home/openhab/check_network.sh
</code>

===== OverlayFS =====
    $ cd
    $ apt install git
    $ git clone https://github.com/ghollingworth/overlayfs
    $ cd overlayfs
    $ sudo overlayfs.sh
    $ reboot
   
===== Wireless Config (Optional) =====
    $ vi /etc/wpa_supplicant/wpa_supplicant.conf
<code>
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=DE

network={
 ssid="mqtt.binary-kitchen.de"
 psk="<Password for your wireless LAN>"
}
</code>

What's the answer to life, the universe and everything? Dieses Feld bitte leer lassen:

Zusammenfassung