In our some previous articles, in context of Arduino for beginners, we discussed about serial connection, UART, SPI, I2C protocol. Another commonly heard phrase is TTL. What is TTL? Transistor-Transistor Logic or TTL is a family of logic circuits used in electronics invented in the 1960s. We will try to keep the article as brief and easy as possible. What is this … [Read more...]
IBM Continues Mainframe Making Them Smaller in Scale
The New Models From IBM Can Fit into 19-inch Racks Efficient For Building New Generation Cloud Infrastructure. IBM has unveiled two new models from its current z14 mainframe line, released last year. IBM Continues Mainframe Making Them Smaller in Scale Like We Predicted Before. The most striking feature of these new is their small size. These compact models z14 ZR1 and LinuxONE Rockhopper II were … [Read more...]
Integrating Apache Nutch With Apache Solr on Ubuntu Server
In our previous tutorials, we written the steps to install Apache Nutch on Ubuntu Server and also how to install Apache Solr on Ubuntu Server. Integrating Apache Nutch With Apache Solr Will Offer a Web UI, Options to Visually Search and Use Extended Functions of Apache Nutch. Our guide on installing Apache Solr uses older version of Solr (at present). We are using Apache Nutch 1.x - in previous … [Read more...]
Arduino Audio Spectrum Analyzer : Basics on FFT and I²S
Actually building Arduino Audio Spectrum Analyzer Better Than What We Did Before in Our Project Arduino Simple Music Analyzer VU Meter From Stereo Input Demands Slight Higher Knowledge. For Building Better Audio Spectrum Analyzer, We Need Some Theoretical Idea Around FFT, I²S, FFT Library and Know How I²S Hardware Works. Better in the sense - not just 3-5 channel spectrum analyzer with 5-8 LED for … [Read more...]
What is SPI? – Serial Peripheral Interface
For Arduino and related electronics prototyping, we need to know some basic theories which make them working. In our previous articles, we discussed about I²C protocol, some basics on UART and discussed some basic around serial communication. Another phrase you'll often come to notice is SPI. What is SPI? Full form of SPI is Serial Peripheral Interface. Serial Peripheral Interface is a bus, a … [Read more...]
Install Apache Nutch (Web Crawler) on Ubuntu Server
Aache Nutch is a Production Ready Web Crawler. Nutch Can Be Extended With Apache Tika, Apache Solr, Elastic Search, SolrCloud, etc. Here is How to Install Apache Nutch on Ubuntu Server. Nutch relies on Apache Hadoop data structure. Apache Lucene is similar to Apache Nutch. Apache Lucene plays an important role in helping Nutch to index and search. We use Apache Tika for parsing, Apache Solr, … [Read more...]
Arduino : Make LED ON One at a Time Using a Potentiometer
We Can Use the On-Board ADC to Convert Number Between 0 and 1023 Rotating Shaft. Here is How to Make LED ON One at a Time Using a Potentiometer With Arduino. That means, as we will turn the shaft of the potentiometer, LEDs will turn on depending upon the position. Actually before this project, one should get used with two basic examples on official Arduino website … [Read more...]
Cloud Computing Service Failures and Disruptions
Cloud computing has become established. Especially large companies rely on the cloud. Many of the local businesses uses cloud computing services. Although, from analytic point of view, compared to previous years, the proportion of cloud users stagnated. Cloud computing helps organizations of all sizes master the challenges of digital transformation. Whether it's a microenterprise or a large … [Read more...]
What is I²C Protocol? Relevance of I²C in Arduino
Previously, we discussed about UART. What is I²C Protocol? I squared C (also pronounced as I-two-C) or I²C is a bus serial communication protocol designed by Philips for home automation and home electronics applications. Since 2006, licensing fees not needed to implement the I²C protocol. Fees needed to obtain I²C slave addresses allocated by NXP. I²C can connect a microprocessor and various … [Read more...]
How to Install Apache Gora on Ubuntu Server
Apache Gora provides an in-memory data model and persistence for big data. It supports persisting to column stores, key/value stores, document stores and RDBMSs, and analyzing the data. It supports Apache Hadoop MapReduce support. Here is How to Install Apache Gora on Ubuntu Server. Gora is one software, example works of which will clarify our article how MySQL used in Big Data … [Read more...]
Blink LED and Beep Every 1 Second With Arduino
Previously we have shown beep with key press and LED lightening up and projects like Arduino Traffic Light, Arduino TM1637 with RTC. Here is How To Blink LED and Beep Every 1 Second With Arduino. We Will Discuss Many Ways To Achieve The Goal Including Using RTC. Arduino has many ways to count time. Easiest we know is usage in the way we Blink a LED as basic example. Blink LED and Beep … [Read more...]