My session on MQTT from the IBM developerWorks Days Zurich 2012

1. MQTT – The Internet Of Things Protocol
Ben Hardill
© 2009 IBM Corporation

2. ● What is the Internet Of Things?
● MQTT Features
● History
● Community
● MQTT Implementations
● Demo
● Mobile use
● Questions

3. What is the Internet Of Things?
● The number of devices connected to the
internet continues to grow every day
● Creating data that may never be seen by a
human
● Rather than creating custom networks to send
data, making use of ubiquitous IP networks
● Smarter Planet/Smarter Cities/Smarter Cars

4. ● The number of
devices connected to
the internet
continues to grow
every day

5. HTTP | MQTT

6. MQTT features
● Publish/Subscribe
● 1-to-many messaging
● Hierarchical topic structures & wildcard
subscriptions
● 3 QOS levels
– 0 at most once
– 1 at least once
– 2 only once
● Persistent messages

7. History
●
Invented by Andy Stanford-
Clark (IBM) and Arlen Nipper
(Eurotech) in 1999
●
Originally envisioned for use
over satellite links from an oil
pipe line
● Home automation (Mouse trap
messages)
●
Twittering Ferries

8. Community
● Protocol spec published
royalty free in August 2010
and started the journey to
becoming a international
standard
● November 2011 IBM and
Eurotech join the Eclipse M2M
working group
● mqtt.org
● COSM

9. MQTT Implementations
● Servers ● Clients
– IBM MQ – C/C++/C#
– IBM Microbroker – Java
– RSMB – Python
– Mosquitto – Perl
– MQTT.js – PHP
– Apache ActiveMQ – Rex
– RabittMQ – Ruby
– Arduino
http://mqtt.org/software

10. Demo

11. Mobile Use
● Facebook Messenger
● Push messaging
– No need for a 3rd party to handle data
● Lower Power usage than HTTP Polling*
*http://stephendnicholas.com/archives/1217

12. Questions
?

13. Resources/Links
● MQTT.org
– http://mqtt.org
– @mqttorg
● Eclipse M2M Working Group
– http://m2m.eclipse.org/
● MQTT protocol spec
– https://www.ibm.com/developerworks/webservices/library/ws-mqtt/

14. Speaker
Ben Hardill
IBM ETS
Emerging Technology
Specialist
Hursley, UK
@hardillb
http://www.hardill.me.uk/wordpress/