7wells

# How to backup and restore Tvheadend settings located in /home/hts/.hts (used on Raspberry Pi OS)
#

# Backup .hts folder incl. all sub-folders and files
#
sudo su hts
cd /home/hts
tar cvjf backup_hts.tar.bz2 .hts

# Consider /home/hts/icons in case they should be saved, too

7wells

# How to download AverMedia TD310 (DVB-C/T/T2 USB stick) firmware files (used on Raspberry Pi 4 Model B)
#
sudo wget https://github.com/OpenELEC/dvb-firmware/raw/master/firmware/dvb-usb-it9303-01.fw -O /lib/firmware/dvb-usb-it9303-01.fw
sudo wget https://github.com/OpenELEC/dvb-firmware/raw/master/firmware/dvb-demod-si2168-02.fw -O /lib/firmware/dvb-demod-si2168-02.fw
sudo wget https://github.com/OpenELEC/dvb-firmware/raw/master/firmware/dvb-demod-si2168-b40-01.fw -O /lib/firmware/dvb-demod-si2168-b40-01.fw

# After that, when plugging the stick into the RPi and the firmware gets fetched from /lib/firmware/, the log file should show it in warm state, e.g. like this:
#
# Sep 28 17:36:37 pi4 kernel: [  695.216493] usb 1-1.1: new high-speed USB device number 5 using xhci_hcd
# Sep 28 17:36:37 pi4 kernel: [  695.321165] usb 1-1.1: New USB device found, idVendor=07ca, idProduct=1871, bcdDevice= 1.00

7wells

# How to download and install NoMachine on Raspberry Pi OS
#

# Download latest deb file, e.g. version 8.1.2.1
#
wget https://download.nomachine.com/download/8.1/Raspberry/nomachine_8.1.2_1_arm64.deb

# Install package
#
sudo dpkg -i nomachine_8.1.2_1_arm64.deb

7wells

# How to install mosquitto broker on Raspberry Pi OS and to enable remote access/authentication
#
# Source: https://randomnerdtutorials.com/how-to-install-mosquitto-broker-on-raspberry-pi/
#

# Install mosquitto broker (optionally also install mosquitto clients)
#
sudo apt install mosquitto mosquitto-clients

# Test mosquitto broker installation

7wells

# How to test mosquitto broker and client on Raspberry Pi OS
#
# Source: https://randomnerdtutorials.com/testing-mosquitto-broker-and-client-on-raspbbery-pi/
#

# Install mosquitto clients (if not already installed together with mosquitto broker)
#
sudo apt install mosquitto-clients

# Subscribe to topic "testTopic"

7wells

# Connect mobile device to PC/laptop via USB

# Connect to your Wifi network (PC/laptop and mobile device must be in the same Wifi)

# Enter command:
adb kill-server

# Enter command:
adb usb

7wells

# Enter following command to disable write protection for fhem.cfg (consider making a backup of fhem.cfg)
#
attr WEB editConfig 1

7wells

# How to enable MQTT2_CLIENT:
#
define MyMQTT MQTT2_CLIENT <IP of MQTT server>:1883

# How to set MQTT user name:
#
Go to FHEM => MyMQTT => attr MyMQTT
Select 'username' from drop-down menu (under 'MQTT2_CLIENT' heading)
Enter username in empty field and hit [Return] key

7wells

# How to ensure that ser2net starts not too early (ie. not before the device is recognized)
#
sudo nano /lib/systemd/system/ser2net.service

# Add the following 2 lines in the [Unit] section:
After=network-online.target
Wants=network-online.target

# See also there: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1000622

7wells

# How to define Tecalor THZ heatpump:
#
define Mythz THZ <IP of device connected to heatpump>:2000
define FileLog_Mythz FileLog ./log/Mythz-%Y.log Mythz
attr Mythz interval_sDHW 600
attr Mythz interval_sHC1 600
attr Mythz interval_sGlobal 600
attr Mythz interval_sElectrDHWDay 3600
attr Mythz interval_sHeatDHWDay 3600
attr Mythz interval_sHeatRecoveredDay 3600