This document outlines a conceptual home security system using Azure and MQTT for communication between devices. It details features of the hardware components, such as the Netduino, and discusses the architecture of the system, including the use of message brokers and the internet of things. The document serves an educational purpose and emphasizes that it should not be used as a real security solution.

1. By: Michael Linnen
Twitter: @mlinnen
Blog: www.protosystem.net

3. DISCLAIMER!
This is NOT a real security system!
*This is for education purposes ONLY*
Do NOT use this as your Home Security
System!

4. THE BIG PICTURE Talk to me!
Message
Broker
Worker Web
Azure
Bedroom 1 Master Bedroom 2
Bedroom
Front Side Back Master Bedroom Bedroom 1st Floor
Bedroom 1 2
Doors
Locked
Windows
Motion
Doorbell
Front
door Sleep Away
Alarm
Back Side
door door

5. NETDUINO PLUS
Digital i/o Features
 All 20 digital and analog pins:
GPIO
 Digital pins 0-1: UART 1 RX, TX
 Digital pins 2-3: UART 2 RX, TX
 Digital pins 5-6: PWM, PWM
 Digital pins 7-8: UART 2 RTS,
CTS
 Digital pins 9-10: PWM, PWM
 Digital pins 11-13: SPI MOSI,
MISO, SPCK
 Analog pins 4-5: I2C SDA, SCL

6. WINDOWS AZURE
 Unlimited resources
 Service Bus (Messaging)
 Storage
 Computation  Internet Of Things Enabler
 Identity
 Networking (VPN)
o Projecting 50 billion devices in
 Web sites (10 free) 2020
 Virtual Machines (Linux or Windows)
 Mobile Services
 Media Services
 Database Services
 Reporting Services
 Cache
 CDN
 Store

7. DEMO

8. ARCHITECTURE

9. MQTT
“MQTT is a machine-to-machine (M2M)/"Internet of Things" connectivity protocol”
• Features
– Lightweight
– Publish/Subscribe
– Open published protocol
• How long?
– Invented in 1999
– Dr Andy Standford-Clark
– Arlen Nipper
• Used By
– Facebook (messenger)
– Github
– COSM (formerly Pachube)
– RabbitMQ (MQTT Adapter)
– Websphere MQ

10. MESSAGES - DOORBELL
Home Azure Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

11. MESSAGES - DOORBELL
Home Azure Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Subscribe Doorbell
Doorbell
Master
Control Panel

12. MESSAGES - DOORBELL
Home Azure Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

13. MESSAGES - DOORBELL
Home Azure Remote
Remote
External Broker Hub Browser
Door
Publish Doorbell pushed
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

14. MESSAGES - DOORBELL
Home
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
Update UI
MQTT SignalR Dashboard
Doorbell Master
Control Panel

15. MESSAGES – UNLOCK DOOR
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

16. MESSAGES – UNLOCK DOOR
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
Subscribe lock
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

17. MESSAGES – UNLOCK DOOR
Home Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

18. MESSAGES – UNLOCK DOOR
Home
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

19. MESSAGES – UNLOCK DOOR
Home
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

20. MESSAGES – UNLOCK DOOR
Home
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

21. MESSAGES – UNLOCK DOOR
Home
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

22. MESSAGES – UNLOCK DOOR
Home
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Doorbell
Master
Control Panel

23. MESSAGES – UNLOCK DOOR
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Publish lock unlocked
Doorbell
Master
Control Panel

24. MESSAGES – UNLOCK DOOR
Home Azure
Azure Remote
Remote
External Broker Hub Browser
Door
MQTT SignalR Dashboard
Update UI
Doorbell
Master
Control Panel

25. HARDWARE
Ground Bus – Exposes more connections
LED’s – Indicators or simulates actuators
Switches – Keyboard,
Window/Door/Motion sensors, Alarm mode

26. Ground Bus
Connect to LEDs or Switches
Connect to Netduino GND

27. LED’S
Connect to Ground Bus
Connect to Netduino Digital
Pin (or 3.3 volt pin to test)

28. Switches
Connect to Ground Bus
Connect to Netduino
Digital Pin

29. Netduino 3.3 V
Netduino GND

30. LET’S GET STARTED
Pick a device to build
o Doorbell (easiest)
o Alarm (a little harder)
o External Door (hardest)
o Alarm Panel (hardest)
Fill out the signup sheet
o Unique Client ID (use your initials)
Get your parts
Code the solution
* Reference: HTTP://www.CloudHomeSecurity.com

31.  VPN
 Restricted IP’s
 HTTPS and a gateway
broker

32. GATEWAY BROKER
Home Azure Remote
Hub Browser
MQTT HTTPs MQTT
Broker Broker SignalR Dashboard
Master
Control Panel

33. MISSION CRITICAL
Home Azure Remote
Hub Browser
MQTT HTTPs MQTT
Broker Broker SignalR Dashboard
Master
Control Panel

34. Messaging Patterns
MQTT Message
Broker Router

35. Messaging Patterns
Subscribe DI/0
MQTT Message
Broker Router

36. Messaging Patterns
MQTT Message
Broker Router

37. Messaging Patterns
Publish DI/0 true
MQTT Message
Broker Router

38. Messaging Patterns
Publish DI/0 true
MQTT Message
Broker Router

39. Messaging Patterns
Publish DI/0 true
MQTT Message
Broker Publish DO/0 true Router

40. Messaging Patterns
Publish DI/0 true
MQTT Message
Broker Publish DO/0 true Router