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Search for "My journey into..." - 21781 results.

My Journey into the Cloud (1)

December 26, 2015 | by Jens Nickel
Perhaps you’ve noticed, like me, that it’s almost impossible these days to avoid the ‘Internet of Things’. Amid the tsunami of information it’s sometimes difficult to get an overview of the technology. In this case it’s partly due to the nature of the beast; it’s not so easy to grasp...

My Journey into The Cloud (2)

January 5, 2016 | by Jens Nickel
In the last installment we took a look at the multitude of possible protocols. The diagram here shows the different protocol layers. A common feature built into the IoT concept is that a node can communicate with another node using...

My Journey into The Cloud (3); MQTT

January 15, 2016 | by Jens Nickel
In the last instalment I took a look at the classic TCP protocol and how it transfers IP packets between sockets (network subscribers with an IP address and port number) over an IP network. TCP employs mechanisms to ensure the data arrives securely. So many programming languages include...

My journey into the Cloud (16) automatic reconnect

June 1, 2017 | by Jens Nickel
In the last installment, we implemented a small actuator project where we are able to switch a remote LED using MQTT. Now and then the link is interrupted, here we show how we can automatically re-establish the link. All the Arduino functions are available from the last installment...
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My Journey into the Cloud (10): The Pretzel Board

July 28, 2016 | by Jens Nickel
Regular readers of this sequel will already know that for my first attempts to remotely control a desk lamp I used a PC as a relay station configured as a MQTT client to receive text-based commands and forward them to a microcontroller board via the USB port. From this basic configuration the next

My journey into the Cloud (5); Control that lamp

February 10, 2016 | by Jens Nickel
In the previous installment I showed how easy it was to install a small PC Client using the MQTT protocol. It allows you to send text messages from one PC to another anywhere in the world. That all works pretty well but isn’t exactly the kind of application you necessarily associate with ‘Internet
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My Journey into the Cloud (12): Stand alone MQTT

October 21, 2016 | by Jens Nickel
In previous episodes I’ve spent most of my time writing PC software, it’s time now to turn our attention to some firmware. Our ultimate aim of course is to cut our ties from the clunky, power-hungry PC so we can send MQTT messages (e.g. measurement data) from smaller, more mobile devices...
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My journey into the Cloud (4); First test using MQTT

February 1, 2016 | by Jens Nickel
In the last installment I set about describing the MQTT messaging protocol. It has many interesting features and is well suited to a system which handles messages between multiple message producers (sensors etc.) and multiple message consumers (PCs, smartphones etc.). Best of all, the protocol is
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My journey into the Cloud (6): control from a smartphone

April 21, 2016 | by Jens Nickel
In the previous instalment of this series I finally succeeded in providing control of hardware via the internet using IoT-specific protocols. To recap, the system uses a cloud-based MQTT client (programmed in C#) to allow two PCs based anywhere in the world to exchange messages via a cloud-based
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My journey into the Cloud (8); a simple user protocol

May 11, 2016 | by Jens Nickel
n the last installment with the help of an open-source library I was able to program an MQTT client for Android. Now I can send out text messages via a public MQTT broker on the internet to an MQTT client on my PC. The program running on the PC then passes the message via its USB port on to SAM-D20
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