The Internet of Things (IoT) or Machine to Machine (M2M), is a technological field that will radically change the global network by enabling the communication of virtually every single object with each other. Studies state that more than 50 billions objects may be connected to the Internet by 2020. In a near future, everything from a light bulb to a power plant, from a pacemaker to an hospital, from a car to a road network will be part of the Internet. While this revolution is already happening (your house or your car may be "connected" already!), there are still lots of barriers to its growth, especially since existing solutions are almost always proprietary, and cannot interoperate easily. There are several very active M2M initiatives at Eclipse aiming at lowering these barriers, all under the umbrella of the M2M Industry Working Group. Last year, projects Paho (communication protocols for M2M) and Koneki (tools for M2M developers, in particular a complete IDE for Lua development) were created, and in July 2012 project Mihini was proposed to establish Lua as a reference platform for building M2M and IoT solutions. The purpose of this talk is to give you a clear understanding of the afore mentioned Eclipse projects, as well as to show you that real M2M solutions can already be developed thanks to them. We will briefly introduce the Lua programming language, explain why it is a good fit for embedded M2M development, and then demonstrate the development of an actual working solution making use of the Mihini framework, a Paho MQTT client, and the Koneki tooling. The use case will also leverage Open Hardware such as Arduino and a RaspberryPi, therefore you can expect nice demos!

1. Using
Eclipse &
Lua for the
Internet
of Things
Benjamin Cabé – bcabe@sierrawireless.com
Gaétan Morice – gmorice@sierrawireless.com

2. IoT? M2M?
Technology that supports
wired or wireless
communication
between devices

3. 50
billion
devices
by 2020

4. 50
billion
devices
by 2020

10. Smart
Pill
Box
Near field
Patient
Heartbeat
Sensor
Medical
Services
Gateway Clinical Trial
Weight Internet
Scale of Things
Communication
Infrastructure Doctor
Blood
Pressure
Blood
Sugar

11. Ready then?

12. …Not quite!!

13. M2M market
= fragmented

14. M2M development
= complex

15. M2M vendors
= lock-in

16. ?

18. 3 projects
Framework
Protocols
Tools

19. M2M embedded
programming
• low-level C • read sensor values
• memory • control actuators
management
• consolidate data
• multithreaded
programming • communicate

20. Example: Sending an SMS
int main()
{
unsigned char char1[10];
unsigned char char_buf[8]="AT+CSQn";
// unsigned char sms_buf[20] = "AT+CMGS="xxxxxxxxx";
int wc_fd;
sms.send(
/********* Init of serial port ************/
wc_fd = init_wc(wc_fd);
'+33612345678’,
sleep(3);
//writing to serial port 'My SMS’,
)
write(wc_fd,char_buf,sizeof(char_buf));
usleep(40000);
//reading from serial port
read(wc_fd,char1,sizeof(char1));
sleep(2);
close(wc_fd);
return 0;
} // end of main
// initialization of serial port
struct termios options;
ttys5_fd = open("/dev/ttyS5", O_RDWR );
if (ttys5_fd < 0)

21. Simplify M2M programming

22. What is Lua?
• High-level programming language
• Scripting
• Extensible
• Simple
• Efficient
• Portable

23. You need an IDE!
• Project structure
• Syntax coloring
• Content assist
• Code navigation
• Code formatting June 2012: first release (0.8)
Dec. 2012: 0.9 release
• Documentation
June 2013: graduate w/ Kepler
• Code templates 20,000+ installations already!
• Debugger
• Remote development

24. Using Koneki LDT for
remote Lua development
DEMO

25. 101
• http://www.eclipse.org/koneki/ldt
• Download standalone IDE
• Or install in existing Eclipse
– from Juno repository
– from nightly/milestones repositories
• Execution environments:
– http://sierrawireless.github.com/lua-execution-
environments/
• Contact the team
– http://eclipse.org/forums/eclipse.koneki

26. http://www.sxc.hu/photo/1036004

27. • Low-bandwidth
• Low-power
• Payload agnostic
• Adjustable QoS
• Large ecosystem

28. (optional) bridge
broker broker
topic/#
topic/subtopic
keepalive
publish
last will & testament
subscribe
username/password

29. 101
• http://eclipse.org/paho/
• Eclipse Paho delivers clients for MQTT in C and
Java
– http://eclipse.org/paho/download.php
• Lua client available soon
– https://github.com/geekscape/mqtt_lua
• MQTT view in Eclipse
– http://git.eclipse.org/c/paho/org.eclipse.paho.esf.git/
• Free broker hosted at Eclipse: m2m.eclipse.org
• Contact the team
– paho-dev mailing-list

30. Lua VM + MQTT client to go?

31. Application framework for M2M
• Set of libraries providing building
blocks to develop user M2M
applications:
– Serial and I/O management,
– Networking (FTP, HTTP, E-mail clients),
– GPS,
– Cryptography,
– Modbus,
– Local storage
– etc. http://www.eclipse.org/mihini

32. Smart agent for M2M
• M2M data queues
• Network bearers
• Device management
• Application container
• Application configuration
http://www.eclipse.org/mihini

33. 101
• http://www.eclipse.org/proposals/
technology.mihini
• http://eclipse.org/mihini
• Code will be available on Github soon
• Initial contribution planned for Q1

34. Let me
show you!

35. Step 1 – Early prototyping
• Greenhouse business
– Connect gardening equipments to each
other
– Remote monitoring of sensors
– Remote control
• M2M Gateway not selected yet,
neither is the rest of the equipment
(PLCs)

36. m2m.eclipse.org MQTT broker
Raspberry Pi Mobile phone
Modbus RTU
humidity
temperature
illuminance
light ON/OFF

37. Two Lua applications
Embedded Mobile
Corona SDK
– Uses Modbus library – Subscribes to MQTT
to talk to Arduino PLC messages
– Collects sensor data/ – Displays sensor data
controls actuators with a fancy UI
– Publishes MQTT – Publish command to
messages switch on/off the
– Subscribe to light
commands

38. M2M Developer Kit
• Actual hardware early in the dev.
process is key
Affordable! Simple! Industrial!
• http://wiki.eclipse.org/Mihini/Developer_Kit
• Arduino code & schematics available after the conference

39. Step 2 – Use an industrial
gateway
• Need for rugged, industrial-grade
M2M gateway
• Take the Mihini codebase and
compile it against the gateway’s
toolchain
• Mihini porting layer
– straightforward for Linux-based devices
with AT modem
– porting layer for other solutions

40. m2m.eclipse.org MQTT broker
Rugged Mobile phone
wireless gateway
Modbus RTU
humidity
temperature
illuminance
light ON/OFF

41. Step 3 – Industrial deployment
• Use a real PLC
– Mihini dev. kit is replaced by a real PLC
– Only the configuration of the application
(modbus registries #) will have to be
updated
• Use a reliable, multi-tenant, M2M
server

42. Telco!
M2M server
Billing! etc…!
Rugged Mobile phone
wireless gateway
Modbus RTU
humidity
temperature
illuminance
light ON/OFF

43. Conclusion
• Developing an M2M app with Mihini
is simple
– Demo app written in a couple hours
• Mihini apps are portable
• Mihini itself is easily portable
– make install
• Koneki provides support for editing,
debugging and deploying M2M apps

44. M2M AT ECLIPSE IS ALSO…

45. A developer portal

46. An all-in-one IDE
• June 2013
• Ready-to-use
• Market Place

47. Join us!
• BoF: tomorrow – 7 pm Schubartsaal
• Industry Working Groups booth