Skip to main content


Eclipse Community Forums
Forum Search:

Search      Help    Register    Login    Home
Home » Eclipse Projects » Eclipse Titan » Lego Bob and Titan meets IoT
Lego Bob and Titan meets IoT [message #1760888] Thu, 04 May 2017 06:43
Elemer Lelik is currently online Elemer LelikFriend
Messages: 759
Registered: January 2015
Senior Member
On the Craft Conference held in Budapest between the 27th and 28th of April (https://craft-conf.com/) one of the attractions of Ericsson's booth was
a Lego truck controlled by an onboard Raspberry Pi running Titan which receives commands via MQTT; the truck could be controlled
via Internet by visiting a webpage that serves the appropriate content in the visitor's browser.

Lego Bob drives the truck

index.php/fa/29221/0/

User interface

index.php/fa/29222/0/
The content was generated by a Node.Js server which also connected to Eclipse's MQTT broker as a publisher.

On the other end, Titan was executing on a Raspberry Pi subscribed to the broker messages.
The processed messages then actuated a set of relays via the GPIO test port, starting/stopping Lego motors and switching LEDs on and off.




+--------------------------------------+
|                                      |
|                                      |
|                                      |
|            Browser                   |
|                                      |
|                                      |
|                                      |
|                                      |
|                                      |
+-------------------+------------------+
                    |
                    |
                    |
+-------------------+------------------+
|                                      |
|                                      |
|                                      |
|             Node.JS server           |
|                                      |
|                                      |
|   MQTT Client(publisher)             |
|                                      |
|                                      |
+-------------------+------------------+
                    |
                    |
                    |
                    |
+-------------------+------------------+
|                                      |
|                                      |
|                                      |
|                                      |
|           Eclipse MQTT broker        |
|                                      |
|         iot.eclipse.org:1883         |
|                                      |
|                                      |
+-------------------+------------------+
                    |
                    |
                    |
                    |
 +------------------+-------------------+
 | Raspberry Pi  (Raspbian)             |
 |                                      |
 |    +-----------------------------+   |
 |    |  MQTT Client (subscriber)   |   |
 |    |                             |   |
 |    |  GPIO Test port             |   |
 |    |                             |   |
 |    |        TTCN-3/Titan         |   |
 |    +-----------------------------+   |
 +------------------+-------------------+
                    | GPIO
                    |
                    |
                    |
  +-----------------+-------------------+
  |              relays                 |
  |                                     |
  |                                     |
  |                                     |
  |        Lego Technics motors, LEDs   |
  |                                     |
  |                                     |
  |                                     |
  |                                     |
  +-------------------------------------+


See also:

Experimental Titan build for Raspberry Pi
https://www.eclipse.org/forums/index.php/t/1081819/

Titan GPIO test port for Raspberry Pi
https://www.eclipse.org/forums/index.php/t/1084041/

CoAP, MQTT and LWM2M TTCN-3 test case examples(CoAP, MQTT and LWM2M client code)
https://www.eclipse.org/forums/index.php/t/1085007/



This demonstrates a full IoT control chain; it may seem a toy, but controlling e.g. a mining equipment remotely at a distance of thousands of miles
at the bottom of a pit in surroundings incompatible with life will look not much different.
The main takeaway is that TTCN-3 with Titan is not only a test tool, it's a language usable for messaging applications as well, such as protocol gateways, IoT clients/servers and so on.


Best regards

Elemer
  • Attachment: Truck.jpg
    (Size: 184.37KB, Downloaded 289 times)
  • Attachment: UserInterface.jpg
    (Size: 470.05KB, Downloaded 246 times)
Previous Topic:Wrong syntax/ Problem with syntax Checker
Next Topic:Help Needed on Winpcap using TITAN
Goto Forum:
  


Current Time: Thu Jun 21 18:31:36 GMT 2018

Powered by FUDForum. Page generated in 0.02019 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.0.2.
Copyright ©2001-2010 FUDforum Bulletin Board Software

Back to the top