TechSparrow123

By Nuno Nogueira, CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=3912826 MATLAB has been  crucial programming language across worldwide that let us express matrix and array mathematics directly. In signal processing and communication it plays vital role in analysing and exploring time series data in time domain or frequency domain. For analysing non periodic signals in frequency domain we use Fourier transform instead of Fourier series ,which is used to express periodic signals in terms of infinite sum of sinusoidal terms .   Fourier transform can exist for :      1. Energy signals      2. Power signals       3. Impulse signals  That means absolutely integrable signals can have their Fourier transform only.  Formula for Fourier transform;   Then its come to use Fourier transform in MATLAB. So here is the code for Fourier transform of sinusoidal wave , for any other signal we ...

Maintaining and modifying the complex engineering drawing on paper is very tedious job. AutoCAD is computer software which allows to user to draw and modify 2D and 3D drawing in easy and fast way. The first version of AutoCAD was released in 1982 on Windows operating system. It is maintained and developed by Autodesk . It is available in 14 different languages. User can customize this software according to their project requirements. It is widely used in mechanical, civil, electrical, electronics and communication industries. Autodesk is providing free student version of AutoCAD software for learning purpose. It is a great opportunity for students or learner to have such industry leading software for free! General features of AutoCAD AutoCAD is a complex software it has almost every feature for drafting. Out of them some general features are listed below. Draw to scale Smart dimensioning tools Draw in any unit system Infinite drawing area Smart Draw Tools for 2D and 3D drawing ...

AutoCAD is a computer-aided design and drafting software popular in engineering students and professional to draw and edit 2D and 3D drawing. AutoCAD is owned by  Autodesk  an American multinational software corporation. There are large list of tools available in AutoCAD to draw and modify the 2D and 3D drawings. Some basic tools are offset tool, copy tool, move tool, erase tools . All these Tools are listed in the Modify Tool Panel under the Home tab. Different procedures to erase the objects in AutoCAD. Select the object you want to erase Press Delete key on the keyboard. All the selected objects will be deleted. This is the easiest way to erase any object. The Erase command. Erase command does not move objects to the Clipboard. That means they cannot be pasted to another location. How to activate the Erase Command? The most popular methods to activate Erase command are: Go to the Modify Tool Panel under the Home tab and left-click on the erase tool. Type E in the comm...

Today, we will do a small but interesting project of measuring humidity with DHT11 (Humidity & Temperature Sensor) using an Arduino board. We will use Proteus 8 for simulating this project. Proteus is a very well-known software used mainly for electronic design automation. It works in real-time and is a very fun way for circuit simulation. So let's get started!! First of all, you can find the DHT11 sensor in the proteus library but you will not find Arduino Uno there. So, we have to download Arduino Uno for Proteus. You can simply search for this on Google or you can download it from here .  After downloading you will get a zip file. On unzipping the zip file, you will see three files:- .IDX File .LIB File .txt File Copy the first two files and paste them into the Library folder inside the Proteus folder in the C drive of your computer. Windows users can follow this path: - This PC -> C: -> Program Files (x86) -> Labcenter Electronics -> Proteus 8 Professionals -...