ZigBee@Linux: Integration of zigbee2mqtt with FHEM (mqtt server) on ubuntu server

After the setup of FHEM and zigbee2mqtt the integration of both components has to be done.

What has to be done?

After reading the excellent documentation of FHEM it is very easy - FHEM can be configured, so that it is providing a mqtt server. 

First you have to add the following line in /opt/zigbee2mqtt/data/configuration.yaml inside the "mqtt:" section:

  client_id: 'zigbee_pi'

Then go to the command prompt of the FHEM webgui and enter the following:

define MQTT2_FHEM_Server MQTT2_SERVER 1883 global
defmod MQTT2_zigbee_pi MQTT2_DEVICE zigbee_pi
attr MQTT2_zigbee_pi IODev MQTT2_FHEM_Server
attr MQTT2_zigbee_pi bridgeRegexp zigbee2mqtt/([A-Za-z0-9]*)[/]?.*:.* "zigbee_$1"

After that you should see something like this:

(you can change the style of the page via "select style" on the left column)

Then you should save:

To create a graph just click on the file which is created for your zigbee device:

and then there should be something like:

Here you can click on "Create SVG plot" and on:

click on "write .gplot file" and your first graph is there... Repeat this and you can get:

 

Zigbee@Linux: Infrastructure - Setup

On my way to home automation with zigbee@linux my decision (as i wrote in this posting) was

• Hardware
• Raspberry Pi
• usb zigbee stick (conbee II)
• OS
• Ubuntu server
• Software
• FHEM (which is the acronym for Freundliche Hausautomation und Energie-Messung = Friendly home automation and energy metering)
  This includes the server with MQTT infrastructure & webserver & gui based on perl
  
• zigbee2mqtt
  The server which does the communication with the usb zigbee stick and talking to the MQTT infrastructure based on nodejs

 

The installation of FHEM was quite easy (see here) and the installation of zigbee2mqtt just worked like described here.

1. Problem:
   FHEM is per default installed without SSL/HTTPS and without user authentication
2. Problem:
   The communication between both components has to be setup

Here the solution for problem 1:

Login to your raspberry and type the following commands:

cd /opt/fhem
chown fhem:dialout certs
cd certs/
openssl req -new -x509 -nodes -out server-cert.pem -days 3650 -keyout server-key.pem 
chown fhem:dialout *
apt  install libio-socket-ssl-perl

After that move the webgui (something like http://yourraspberry:8083) and submit the following commands on the prompt:

attr WEB sslVersion TLSv12:!SSLv3
attr WEB HTTPS 1

And then open your webfrontend with https://yourraspberry:8083.

To add a user:

@bash

echo -n fhem:MYPASSWD| base64

@Webfrontend:

attr WEB basicAuth BASE64String

 The second problem will be solved on a future posting. Just wait...

Home automation with linux: How to use zigbee sensors on an ubuntu raspberry pi...

To the end of the year i wanted to start a new project: Home automation...

I decided to use a linux system (of course) on a raspberry pi (see the OS installation here) and the zigbee protocol.

The main problem: What packages are needed 

• to get a communication with zigbee components?
• to get a website or app to get the data / visualize the data?
• to set up a daemon/server which controls the devices?

Let's start with the third point: I will try FHEM.

The installation is described here:

https://debian.fhem.de/

wget -qO - http://debian.fhem.de/archive.key | apt-key add -
echo "deb http://debian.fhem.de/nightly/ /" >> /etc/apt/sources.list
apt update
apt upgrade
apt install fhem

After you follow the steps you can check, if FHEM is running with

root@zigbee:/home/ubuntu# netstat -ltnup | grep 8083
tcp        0      0 0.0.0.0:8083            0.0.0.0:*               LISTEN      19446/perl   

 or just connect to your raspberry via browser: http://zigbee:8083

 

 

 

and here a screenshot of the goal i want to achieve (maybe with some graphs added):

Here a list of the supported hardware:

https://wiki.fhem.de/wiki/Kategorie:Hardware

and a list of all supported protocols:

https://wiki.fhem.de/wiki/System%C3%BCbersicht#Protokolle

 

 

 

 

Raspberry PI: Installing OS with a linux pc/laptop (ubuntu)

 If you want to run a raspberry pi and you are wondering how to install the os onto the sd card please try this:

https://ubuntu.com/tutorials/how-to-install-ubuntu-on-your-raspberry-pi#1-overview

What is the benefit of this way?

Ubuntu provides on page 2 a package for the rpi-imager:

• Raspberry Pi Imager for Ubuntu
• Raspberry Pi Imager for Windows
• Raspberry Pi Imager for macOS

and with this tool (will be started with rpi-imager on the cli), you will get this:

 As you can see: you can choose of many different OS and the imager will do the download and the installation for you including resizing the partition to the complete sd card...

And of course you can select your own image (e.g. in *xz format) from your disk...

After the installation it will be verified and you can start your raspberry pi...