IoT Prototype in 15 minutes

IoT Prototype in 15 minutes

IoT - Internet of Things has been a hot topic in IT industry for some time. IoTs currently considered to be the fastest growing market, so why not have a closer look about how to build your first prototype, using cutting edge technologies for creating IoT proof of concept projects.

Introduction

IoT - Internet of Things has been a hot topic in IT industry for some time. It's currently considered to be the fastest growing market, so why not have a closer look about how to build your first prototype, using cutting edge technologies for creating IoT proof of concept projects.

Build your first prototype using Node-REDmqtt and Samsung ARTIK in 15 minutes with our tutorial! Make it applicable in the field by deploying to Raspberry PI and see how to attach some real-world measurement sensors to it.

Ready, steady, go!

Architecture

Let's start with some prerequisites for our micro-project, so that we share a clear vision of the goal we want to achieve, technologies we want to use, and what reason stands behind it.

We will divide this tutorial into two steps. The first will lead you through the process of building proof of concept software and the second will show how to deploy it to real hardware. In IoT projects it's important to know the final technologies being used in your platform, so that you can start with correct assumptions and choose the right solutions.

We'll build a simple temperature monitoring system, with real-time charting and overheating email alerts. These kinds of systems are being used everywhere from alarm systems, to hobbies like brewing, and even to complex industrial systems for monitoring technological processes and machinery.

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We want our system to be sending a single floating point number per sensor, let's say, every 10 minutes to the cloud (you can do it more often if you wish, I basically find it unnecessary). The data should be stored, displayed as a chart and compared to threshold value so that our system can trigger email notifications if something goes wrong. It needs to to be able to work under any conditions, also using a GSM network to connect to the cloud - low data rates are possible, so a light-weight protocol like MQTT seems to be a good choice. Another reason to use protocols with low data overhead is that in GSM communication, you usually pay per single kilobyte transferred.

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