Friday, January 18, 2019
Simon Tushev

Simon Tushev

Simon is IT professional with interests in web design, electronics, photography and astronomy. He writes about PHP, Yii, Joomla!, Arduino and several other topics.

Keywords: Apache MPM ITK PHP MySQL VPS CentOS

In this article I'm going to describe a typical configuration for a private web server. I assume you use CentOS 6 as your operating system, in other *nix distributions some paths and commands may vary. However, the idea remains intact:)

Most servers require PHP as scripting language, and MySQL for databases

If you run multiple websites, it is always better to run them as different users. Even if a hacker gets access to one of your sites, there's a high chance that the others will remain intact.

Monday, 05 August 2013 13:03

How it works: DS18B20 and Arduino

DS18B20There are many Arduinods18b20 sketches on the Web that provide sample code how to work with MAXIM’s (formerly DALLAS) DS18B20\DS18S20 digital temperature sensors. However, most of them do not describe the process in details. In this article, I’m going to show the gears that make the whole thing work.

Wednesday, 02 March 2011 23:00

Measuring frequency with Arduino

arduino megaThere are many signals that contain necessary information in frequency. For instance, SparkFun's HH100D humidity sensor outputs measurements via frequency signal (although it has i2C interface, those pins are used for reading calibration values. Actual measurements com via FOUT line).


There are two ways to measure a frequency with Arduino:

Friday, 03 December 2010 23:00

Reading iButton with Arduino

iButtons  readerWe all are familiar with iButton devices - a small chip used as a key almost everywhere:Those keys use Maxim's (formerly Dallas Semiconductor) 1-Wire protocol. It's a nice thing and it is used in many other devices, like temperature sensors (DS18B20, DS18S20 for instance).

As it comes from the name, 1-Wire devices require only one wire for data transfer. Some devices are also capable of using ithis line as a power source. (However, one will still need another wire - for ground).You can attach a large number of devices to the same line. That's especially well when you are using Arduino - OneWire line takes only one digital pin, and you theoretically can plug all you OneWire sensors, keys etc to this line.

Wednesday, 27 March 2013 17:58

Premium Joomla templates

Many years ago I discovered a site with tons of high-qualty Joomla templates. Yes, it's ThemeForest - one of my favourite marketplaces. I often use it to get adequately-priced and high-quality items.

Try it for yourself! >>

Page 5 of 7


Here I publish articles related to my areas of interest, my brief notes that may save some time to others, as well as some of my works.

This site is a work in progress. I will add more sections in the future, such as

  • More photos to photogallery
  • More Joomla!-related articles
  • ...



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Visual difference between pseudo and true random data

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