1. DOMOTICA MAY MONTH Sander Claassen John Heesterbeek Ad van Berlo
Marco van Nieuwenhoven
Hans Willemen
MADspace community 1 1

2. Program * Avond 1 - 2 mei Domoticz @ RasbperryPi
* Avond mei Sensors & actuators
* Avond mei Domotics bus-systems
* Avond mei Blocky & node red
* Avond mei SDR/ LoRa / KNX / OpenHab / Strut your stuff 2 2 2

3. Workshop 1. Introduction SDR 2. The basic requirements
3. Getting started
3. Use case examples
4. The end-less possibilities
5. And more... 3 3 3

4. What is a Software Defined Radio?
What is a Software Defined Radio (SDR)?
Digital radio receiver (since 1970)
Operation defined in software (tuning / modulation / decoding etc.)
Must-have tool for hackers; tab into wireless signals
Radio-waves are
presented:
- Audible
- Graphically
- Digital (via plugins)
RTL-SDR (RTL2832U) and software defined radio news and projects. Also featuring Airspy, HackRF, FCD, SDRplay and more. 4 4 4

5. Required hardware What hardware is required? Required hardware:
Pc/ laptop / Raspberry PI, or
(Android) phone with OTG USB
Antenna (custom antenna is required sometimes)
RTL-SDR (RTL2832U Chip), Airspy, HackRF, FCD, or SDRplay
SDR price range: euros depending on noise ratio, frequency, Rx/ Tx features (but basically any USB DAB/ DVB-T tuner works)
RTL-SDR (RTL2832U) and software defined radio news and projects. Also featuring Airspy, HackRF, FCD, SDRplay and more.
Look for: Homemade Quadrifilar Helix Antenna to caputure satilites 5 5 5

6. Required software What software is required? SDR software:
CubicSDR (Windows / Mac) or GQRX (Linux / Mac)
Virtual audio pipe:
VB-cable Virtual Audio Device
Decoding software
Audacity (freeware audio tool)
WXtoImg (weather satellites)
GNU radio (advanced development tool via github) 6
(free or open software listed only) 6 6

7. SDR software – gettings started
Install required drivers for your device, and configure device settings:
Apply the (magic) “Device string” for your
device, and keep other parameters as is.
Also note that this might differ per tool... 7 7 7

8. SDR software – getting started
Your main frequency
Your frequency spectrum
The interface
Your Frequency
Some 433,92Mhz devices ;) 8 8 8

9. SDR software – getting started
Your focus frequency
Your frequency offset
The interface
Your settings to play with..
Record/
Play..
Your Frequency 9 9 9

10. SDR software – getting started
Fast Fourier transform settings for graphical representation
The interface
Your Frequency 10 10 10

11. SDR examples
Weather satellite using Homemade Quadrifilar Helix Antenna
satellite tracking SDRsharp 11 11 11

12. SDR examples A 433MHz doorbell hacked!
Export audio to Audacity (Freeware)
Then ‘read’ / ‘modify’ Manchester data
Now connect 1-dollar 433MHz transmitter to a soundcard, to hijack your neighbour's doorbell ;) 12 12 12

13. SDR examples
Advanced tooling for further encrypted signal decoding: GNU radio / Python plugins: 13 13 13

14. Workshop 14 14 14

15. Program * Avond 1 - 2 mei Domoticz @ RasbperryPi
* Avond mei Sensors & actuators
* Avond mei Domotics bus-systems
* Avond mei Blocky & node red
* Avond mei SDR/ LoRa / KNX / OpenHab / Strut your stuff 15 15 15