Apache Apex is a Hadoop YARN native big data processing platform. It was released as industry's first YARN native engine. This enables real time stream, batch processing. Installing Apache Apex With Hadoop Demands Meeting Prerequisites Including Apache Hadoop, JDK 7, Git and Maven. In other words, you need to make sure whether you are going to use native Apache's original distributions or tweaked … [Read more...]
Archives for May 2018
Arduino TFT Touch Screen Calculator (MCUFRIEND) : Part 2
May be, reading the Part 2 of Arduino TFT Touch Screen matter will help you. The touch screen shield I got has ST7789V (0x7789), which is somewhat uncommon. This article is Part 2 of Arduino TFT Touch Screen Calculator By MCUFRIEND. These cheap China used-display stuffs basically have some risk of purchasing. If the driver is rare, you do not have much options. Identifying driver not also that … [Read more...]
How to Install Silex : Static Website Builder on Ubuntu Server
Hosting static website on various cloud storage like DropBx, OpenStack Swift including Rackspace Cloud Files etc is our old topic with various examples. Silex is a F/OSS Static Website Editor Intended to be Accessed via Browser to Host Sites on Cloud Storages, However it Has Packages for GNU/Linux localhost too. Here is How to Install Silex Static Website Builder on Ubuntu Server. Silex project … [Read more...]
Handwritten Note-Taking/Illustration Apps For Android & Windows
Sadly, unlike Mac, the options of handwritten note-taking apps is limited, specially if you budget is lesser of you are seeking free with tons of features. For Mac, there is iDraw for illustration. There Are Several Points Needed to Be Present in a Handwritten Note-Taking/Illustration Apps For Android & Windows. Here is a Small List of Some Apps for Android and PC, Specially Useful in … [Read more...]
What is Thermistor : Basics on Thermistor Using Arduino Project
In 1833, Michael Faraday discovered the first NTC thermistor. In high school, you were taught metal couple get bent with temperature. That thing is more old. Here is Basic Theory and Practical Basic Example on Thermistor Using Arduino Project With Circuit Diagram and Code. What is Thermistor? Thermistor is a basic electronic component like LDR, it is also a type of resistor whose resistance is … [Read more...]
Neon Lamp (Power Indicator) and Nixie Tube
Even if you saw Neon Lamp, unless you know you just think as incandescent bulb. If you see the photograph, you'll immediately identify the thing inside your house like in some plugs. They are NE-2 Neo Lamps, lighting since 1838. They were co-invented by Sir William Ramsay, who discovered Nobel gas too. The other inventor was Morris Travers. Morris Travers established Indian Institute of Science … [Read more...]
Introduction to Serverless With PHP (IBM Cloud OpenWhisk)
Server less is a Great Concept. In our previously published articles, we discussed about IBM OpenWhisk and also shown how to install OpenWhisk on Ubuntu server. As it is a Free Software framework, we have no fear of vendor lock-in if we carefully use the PHP functions only. Here is Introduction to Serverless With PHP For IBM Cloud OpenWhisk. Serverless concept itself as basic as using some … [Read more...]
What is UART in Plain English?
We often face the phrase universal asynchronous receiver-transmitter in matters like serial communication of Arduino or some shield's of Arduino. What is UART in Plain English? UART is an electronic circuit used to implement digital serial interfaces of computer or peripheral devices. Serial transmission is commonly used for modems, non-networked communication between computers or peripherals. … [Read more...]
Cheap, Small Arduino Projects With ATtiny 13, ATtiny 10 (Basics)
For the past few years, Atmel manufacturing smaller microcontrollers. ATtiny 85 is quite known. You Can Create Cheap, Small Arduino Projects With ATtiny 13, ATtiny 10. They cost $1 or lesser per unit and needs no external components. Basic problem is that - you probably can not get ATtiny13 or lower in local shop. So, ordering one unit not going to worth the amount of work. Among ATtiny 13 and … [Read more...]
Is There Data Privacy in Google Cloud (After Snowden Revelations)?
Google Has Lot of Cloud Products. Only Listed Services and Matters of Google is Known Dubious. Asking Is There Data Privacy in Google Cloud After Snowden Revelations is Practicall Unaddressed. It is of course uncanny that Google is listed by Richard Stallman as questionable with findings by Free Software Community. If you talk about Google Cloud Services including virtual machines, Android - they … [Read more...]
Is Learning 8051 Microcontroller Needed Despite Having Arduino?
8051 is an older microcontroller than Atmega (which Arduino boards commonly use). 8051 has developmental board or one can build from basic electronic components. Now, after a certain point of learning, one may ask - Is Learning 8051 Microcontroller Needed Despite Having Arduino? Sadly, there is no easy answer. We talked about Von Neumann Architecture, ARM architecture etc. Good engineer, good … [Read more...]