This document provides an overview of home automation using a Raspberry Pi with various protocols like Z-Wave, Enocean, Zigbee, and WLAN. It discusses the motivation for home automation and introduces tools like the Raspberry Pi, Linux operating system, FabLabs, AirPi, and FHEM home automation software. FHEM allows connecting different sensors and integrating protocols to trigger actions. Setting up a basic Raspberry Pi with FHEM and integrating various wireless sensors and devices for home monitoring and control is demonstrated.

1. Home Automation with my
Rasberry Pi
(FHEM,Z-Wave,Enocean, Zigbee, Wlan)
Developer Camp 2018, Dipl. Inf. Thilo Röhl

2. Motivation
• Everyone has a smartphone, no one knows how to create things or
develop software
• First Generation of Apple being garage builders
• Smartphone and tablets create a out of the box
• No expertise with making things, creating things
• Even computer science students tend to have virtual expierience

3. The Rasberry Pi
• Invented for School people to educate programming
• Project founded in UK
• Roughly sold 5 Millions (2013)
• Production in UK – moved back from China
• Non Profit Organisation
• Open Design
• Low Power, about 12 € for a whole year

4. Operation System
• Linux
• Open Source
• Invented by Linus Torvalds et al

5. FabLabs
• Open laboratories to fix things
• People want to understand how things work rather than buying new
things
• The makers build their own systems
• Connection and building own things
• Open space, non profit

6. AirPi
• Created by a group of english pupils
• Sensors for air quality, sound, light
• Sourcecode freely available is now
maintained by a english chemistry
phd student
• You get it in single parts to solder
it yourself
• Nonprofit

7. AirPi delivery

8. Adafuit LCD Display
• A simple display to solder for yourself including a plate, an LCD display
and 5 small buttons
• Tutorials with pictures on the webpage how to solder it. Source code
to use the display is freely available

9. Ardafruit LCD Template Delivery

10. FHEM
• Created by Rudolf König / Germany in 2005
• Perl script to be used for home automation, GPL open source
• Module based system, module maintained by anyone active on the
forum
• Very active community
• Independent of cloud or networks

11. Sensors, Events, Actors
• FHEM connects Sensors with different modules creating inside events
using triggers to start actors
• Any Sensor can be freely connected to any Actor
• The perl language allows regular expressions and powerful
combinations
• Local scripts can be executed or web services called
• FHEM instances can be connected to allow a distributed model
• It is possible to connect devices over many different wired or wireless
protocols e.g. KNX, EIB, Homematic, GPIO of the rasberry pi

12. Z-Wave
• Wireless protocol supported by a alliance of vendors
• Z-Wave creates a „secure“ mesh network
• Examples are smoke detectors, water detectors,
wall plugs with sensors and logic

13. Enocean
• Alliance of couple of vendors, based in Munich
• Focus on low-power design
• Switch using the energy of the movement of the finger
• Temperature or window opener use the light

14. Bluetooth LE
• New devices in the market, mainly
for smart phone connections can be
interconnected with FHEM

15. ZigBee
• Used for Philips Hue Lightning, Osram Lightfy
• Tendencies to unfollow open standards
• Security issues according heise *
*http://www.heise.de/security/meldung/Deepsec-ZigBee-macht-Smart-Home-zum-offenen-Haus-3010287.html

16. Wlan
• E.g. TP-Link
• Wlan easy to setup by scanning with mobile
scanner
• App-enabled out of the box to be controlled
from anywhere
• Protocol reverse-engineered, JSON format
• https://www.softscheck.com/en/reverse-engineering-tp-link-hs110/

17. If you cannot decide…
• Chose an open system !
• FHEM is able to integrate them all
• Consider Home Automation as a journey. Step by step integration,
avoid buying island solutions

18. Base Setup of Rasberry Pi
• Basis setup of pi
• sudo apt-get update
• sudo apt-get upgrade
• sudo raspi-config
• to expand file-system and to setup localisation/keyboard
• date –s „03/08/2016 12:30“
• to setup time. The pi has no clock – use ntp if possible
• In some cases, a kernel update using „sudo rpi-update“ might be necessary. I
had to turn of the device tree using raspi-config to get some device back
working. Do only do this if really necessary 

19. Base setup of FHEM
• http://www.fhemwiki.de/wiki/Raspberry_Pi
• wget http://fhem.de/fhem-5.7.deb
• sudo dpkg -i fhem-X.Y.deb
• Start browser to access local system 127.0.0.1:8083
• Access is possible over smartphone, table and with VPN even remote

20. First update
• FHEM does not support a proxy for updating
• Put update in the command line
• Current perl modules will be download
• „update“ in the browser window
• „shutdown restart“
• „backup“

21. The power of the community
• Users contribute freetime to help others. www.fhem.de
• Resulting scripts are shared and further improved and finally
integrated in FHEM
• They are all having a lot of fun and are creating a deeper
understanding of IT
• Access to basic concepts of IT concepts for the whole community

22. Dummy
• http://www.fhemwiki.de/wiki/Erste_Schritte_in_fhem
• A state variable
• define mySchalter1 dummy
• attr mySchalter1 room Schulungsraum

23. Readingsgroup Battery Status
• define battStatus readingsGroup .*:[Bb]attery
• All Readings with Battery or Battery from all Devices
• Get connectivity overview

24. Dummies with with symbols and colors
• Dummies for alarms, Symbols, On/Off button

25. Zwave battery powered outside sensor
• Temperature, Humidity, Lux, Movement

26. Plotting Outside Temperature/Humidity

27. Readingsgroup Weather Readings

28. Plotting System load – 900 Mhz Throtteling

29. Plotting Bluetooth Presence

30. notify
• Notify triggers because of an event.
• A notify can trigger an SMS over a USB SIM Stick or a pushover app
message or an email
• define b3lampV1 notify btn3 set lamp $EVENT
• define b3lampV2 notify btn3 { fhem "set lamp $EVENT" }
• define b3lampV3 notify btn3 "/usr/local/bin/setlamp "$EVENT"“
• define n_mySchalter1_on notify mySchalter1:on set myLampe1 on

31. at
• At triggers something depening on a time
• define a1 at 17:00:00 set lamp on # fhem Befehl
• define a2 at 17:00:00 { Log 1, "Teatime" } # Perl Befehl
• define a5 at +00:00:10 set lamp on # Start in 10 secs
• define a12 at +*{sunset_rel()}
{ fhem("set lamp on-till 23:00") if($we) } # Only Weekends
before sunset

32. Notify for Smoke Alarm

33. Combine any input with any output
• Everything in FHEM can be combined regardless of the proctol
connecting to the outside
• If you are not satisified with a current solution, integrated you own
and show the example to the community

34. Combine Cloud Services
• Use the cloud to archive data, visualise data, trigger actions
• Useful when you need more power, more storage or a long term data
qualitiy
• Examples are ubitdot as general IOT data collector, netatmo as
weather service, Amazon as storage provider or Pushover as mobile
messaging service

35. Create installation short manuals
• E.g. Freeradius base config
• apt-get install freeradius libfreeradius2 freeradius-common freeradius-utils
• Installs packages, depening packages, start scripts (service freeradius start/stop) and start the
service
• add new client to :
• /etc/freeradius/clients.conf
• client 192.168.1.0/24 {
• secret = radiustest
• shortname = Testnetz
• }

36. And no go ahead and play with it 
• Rasberry Pi Setup
• https://www.raspberrypi.org/documentation/installation/installing-images/
• Zwave
• Example devices taken from www.fibaro.com, www.aeotec.com, www.popp.eu
• Enocean
• Example devices taken from www.nodon.fr
• Bluetooth
• Example devices taken from www.parrot.com/flowerpower, www.playbulb.com