Blog of .Ghassen

What is HTTP? The HyperText Transfer Protocol is the language used to communicate between web browsers and servers. In other words, it is pretty much the language one computer uses to ask another computer for documents. HTTP follows the client/server model. This is a structure that describes how a server provides resources and services to a client. When the client requests something from the server, the server can either accept of reject the connection. If the connection is accepted, the server establishes and maintains a connection with the client over a protocol just like HTTP. Think about HTTP is a set of rules for transferring files like text, images, sound, video and other multimedia files. Computers that communicate via the HTTP must speak the HTTP protocol. This brings me to talk about the request response cycle. Since we know that two computers are connected physically via the Internet, using the URL’s allows us to communicate with these servers. This means that HTTP uses ...

Arduino codes for different components : Arduino / Morse_buzzer_led.ino   /* In This code we will try to generate words and letters to Morse code ! using both of light and sound! */ char * morse [ ] = { " .- " , " -... " , " -.-. " , " -.. " , " . " , " ..-. " , " --. " , " .... " , // a,b,c,d,e,f,g,h " .. " , " .--- " , " -.- " , " .-.. " , " -- " , " -. " , " --- " , " .--. " //i,j,k,l,m,n,o,p , " --.- " , " .-. " , " ... " , " - " , " ..- " , " ...- " , " .-- " , " -..- " , " -.-- " , " --.. " } ; //q,r,s,t,u,v,w,x,y,z int one_unit = 500 ; // half-second for the "." code. and between letters. int three_unit = 1500 ; // secand and helf for the "-" code. int seven_...

In this project, we are going to control the servo motor through a webpage. The webpage will be created using an ESP8266 module and, by moving the slider on the webpage, the servo motor will move accordingly. Required Materials:   The components required for this project are as follows: Arduino Uno Servo motor (sg90) ESP8266 ESP-01 adapter Connecting wires   Connecting the Arduino UNO to the ESP8266: Web-controlled servo circuit diagram First of all, connect the ESP8266 with Arduino. We have used an adapter to connect the esp8266 with the Arduino, which will make the connection very easier. The adapter has 5 to 3.3V regulator and you don’t need to connect any external resistors with it. Connect the GND of adapter to the GND of Arduino Connect the VCC of adapter to the 5V of Arduino Connect the RX from the adapter to the pin 2 of Arduino Connect the TX pin from the adapter to the pin 3 of Arduino After that, connect the servo motor wi...

  In a survey conducted by me few days back on digital camera modes, I got amazing responses. And one of the most overwhelming responses to the finest shooting mode was Automatic mode. Novices as well as adept users of digital cameras suggested this mode the best which was a little surprising to me. But with this, I got an idea to put various camera modes in the picture for your knowledge. I hope this article would be helpful for everyone who desires to access various modes in a digital camera. Three types of modes are at hand which are further subdivided into categories. Take a sneak-peak: Automatic Modes:          Automatic Mode : Auto mode doesn’t need any preface as it is clear from its name. This mode itself fiddles with the camera shutter, aperture, focus, ISO, white balance and flash and gives you the exceptional shots. Some digital cams equip you to countermand the option of flash and convert it to red eye reduction. I...

Numix  is the best theme out there in the Linux world. In this article, we are going to see  how to install Numix theme and icons in Ubuntu 14.04 and Ubuntu 16.04 . While I am stressing on Ubuntu, Numix is available for all major Linux distributions and desktop environments for e.g., GNOME, Cinnamon etc. Imagine the popularity and beauty of Numix that it is the default theme of Arch based beginner-friendly Linux distribution, Antergos. Install Numix theme and icons in Ubuntu We’ll be using the official Numix PPA. Open a terminal (Ctrl+Alt+T in Ubuntu) and use the following commands to install Numix theme and icons: sudo add-apt-repository ppa:numix/ppa sudo apt-get update sudo apt-get install numix-gtk-theme numix-icon-theme-circl If you want to install Numix wallpapers, use the command below: sudo apt-get install numix-wallpaper-* It will install all the Numix wallpapers available in the PPA. Once we have installed the the...

Tumblr now is an indeed powerful platform for convenient and at the same time advanced site-building. Also, this is one of the most rapidly developing social media on the web, which includes more than 66 million blogs with over 28 billion posts on them. But the auditory amount is not the only thing that makes this source respectful and recognizable. One more option the one can benefit from using Tumblr services is their great variety of hundreds graphically rich and powerful templates, many of which are free. In addition to it, every tumblr blog is enriched with easy social nets sharing tool, mass post editor and queue posting opportunity that allows keeping your site up-to-date without your direct participation. Discover more about tumblr powers here . To enjoy tumblr services, you should: Create an account in Tumblr system Note that the portrait picture you set will show as the website’s icon. But whatever username you create, you can set your custom...