Getting Hands-On with Internet of Things


iotpubsubFollowing my previous post on Getting Started with the Internet of Things, I would like to share, from my practical experience, some more ways of discovering what amazing things you can do by mixing the digital and the physical world (I purposely avoid naming the latter “real,” because to me they both are very ‘real’ ;-)).

This time, I will focus on the importance of complementing the transactional or “Request/Response” model, used by most traditional IT systems, with a more near real-time or “Publish/Subscribe” model, better suited for the Internet of Things. There are many reasons for doing this, and one important reason is the rapidly increasing volume of both things (devices) and data. Another important reason is the security problems that occur due to the fact that a pure Request/Response model would require each thing that needs to be controlled, to act as a (web) server. Almost anything that is a “server” can be hacked, so making each thing a “client” in a “Publish/Subscribe” model will decrease that security risk significantly.

The first video is about the de facto standard Publish/Subscribe protocol MQTT.


In the second video, I show how to share (publish) sensor data using MQTT.


The third video is about how to control things (sensors) using MQTT.

Christian Forsberg


Chris Forsberg is Sogeti's Global Chief Architect, and his current passion is serverless architectures with microservices, cognitive solutions like chatbots, automation, and beautiful delivery. He has a long background as an architect of digital solutions for many clients on all the major platforms, and love to experiment with new technology. For example, he has put together a YouTube video series on how to get started with the Internet of Things, and has been involved in the implementation of more than 100 apps on iOS and Android. With a global network of 600 architects, he is devoted to creating intellectual property, and one example is Digitecture, a reference architecture for digital platforms. Other examples are Appitecture®, a start package for app projects, and Appcademy®, a certification program for app developers. Chris has received several technology leadership awards including Top 100 Developers (Sweden), and ten years awarded Most Valuable Professional (MVP) by Microsoft. He was an official writer for Microsoft Developer Network (MSDN) for many years and has also co-authored a book on mobile development in 2001.

More on Christian Forsberg.

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  1. Goudallier June 29, 2015 Reply

    hi Christian… I m manager of sogeti consulting team in Toulouse…as you may Know Toulouse is one of the main focal point of iot with the sigfox company which has raised a 120 million Euro budget in the beginning of 2015 dédicaced to the deployement of his technology worldwide…
    It’s a key factor success for my capacity to développ buiseness to identify experts l’île you working in iot Area…
    I ve got 2 questions :
    1) Can you give me high Level benchmark between the 3 main technology ans oparators of m2m iot : sigfox, lora and Neil
    2) what are sogeti best client stories in iot?

    Thanks for your help
    You can call me to share expérience on my mobile phone : 33 609605609

    Kind regards

  2. Christian Forsberg July 3, 2015 Reply

    Hi Jean-Marc, thanks for the info, and I will respond to you questions in email.