Since a long time I wanted to create something cool using LEDs and Arduino for Diwali. For those who don’t know, ‘Diwali’ is known as ‘festival of lights’ in India. During Diwali you will see houses and buildings decorated with earthen lamps (called ‘diyas’), lanterns and LED lights. Shown below is ...

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In my previous articles, I had written in detail about creating wifi enabled temperature and humidity logger using ESP8266 + NodeMCU and configuring a NoSQL(CouchDB) database to store data transmitted by it. In this article, we are going make our IoT device tweet temperature and humidity readings us ...

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In the Part 1 article , I had written in detail about creating wifi enabled temperature and humidity logger using ESP8266 and NodeMCU. In this article (which is the Part 2), I will discuss about the storing and accessing data generated by the device which we created in Part 1. If you recollect, the ...

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In this project I have used ESP8266 and DHT11 sensor to create a temperature and humidity logger, that transmits data over wifi. Currently, data is transmitted to a CouchDB instance, but with minor modifications to the code it should be possible to send data somewhere else. I have divided this tutor ...

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After experimenting with and reading a lot about IoT technologies, I decided to create something. So here my first IoT project: The wifi enabled portable display. This tiny little display connects to a internet over Wifi and waits for messages. It is possible to send text messages or images to the d ...

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Someone rightly said , “A picture is worth a thousand words” ! In the electronics world we can say this translates to, “ A display is worth a thousand LEDs”. I have always wanted to add some sort of display to my microcontroller projects. The main issues I faced with this were: The most com ...

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In this article I will show you, how we can create a very basic wifi network detector using a ESP8266 module, a LED and some code. If you are new to ESP8266 I strongly recommend you read my introductory article on it. We will use a ordinary LED connected to one of the GPIO pins of ESP8266 to indicat ...

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IoT (Internet of things) is a hot topic these days. Simply put, IoT refers to a network of small interconnected devices that can communicate with each other.In last few years, we have seen steady flow of inexpensive and powerful programable embedded devices/boards. Arduino is an excellent example. T ...

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It has been a long time I posted something on my website. I was busy learning about NoSQL , mainly CouchDB. So, in this article I show you how to create a basic portfolio management web application using CouchDB and AngularJS. Our application will allow the user to add entries to a stock portfolio. ...

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I am sure many of you might have wished to have a portable C# compiler + editor combo which you can carry with you anywhere. Sometime ago, I had the same need. Unfortunately there exists no version of ‘Visual Studio’ which can be termed ‘light weight/portable’. Hence, I started researching for ways ...

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