How to use Publish Subscribe with MQTT

You have heard the mentioning of MQTT Message Queuing Telemetry Transport. What is it? Can I use? The MQTT is a protocol frequently used in the IoT Internet of Things space. It’s used for publish and subscribe mechanism. You would usually have either a Dumb Broker and Smart Client or Smart Broker and Dumb Client.

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What is Communicating Sequential Processes (CSP)

Communicating Sequential Processes is a processing paradigm. The concept of CSP were first introduced and described by Tony Hoare in 1978 in his paper Communicating Sequential Processes. The basic of it is a formal language to describe patterns of interactions in concurrent systems. The formal language in mathematics are defined typically as the alphabet or

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Can’t uninstall program in Windows 10

Trying to uninstall program from programs and features in control panel can get you an error. Either it can’t find the uninstaller or you don’t have sufficient access like admin rights even though you do have administrator access. So what you can try is using Microsoft own fix for installing or uninstall a program by

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Getting started with R how to install a package

To install a package in R call the install function in the prompt like this Then when you have install swirl you can load in the library in your R file by using library() Now the library swirl has been loaded and you can now call the swirl functions Source: