Digital Watermarking Using DWT and DCT In MATLAB

Abstract : Now days due to advancement of technology it is difficult to protect creative  content and intellectual property. It is very easy to copy and modify digital media resulting in great loss in business. So…

How to Make Flyback Driver

Flyback transformer (FBT) is specially designed transformer for which are used in CRT displays . It is capable of generating over 50kV . In this article I am going to instruct how to make a…

How to Make FM Transmitter

In this article you are going to see how to make fm transmitter. A short range fm transmitter is low power portable fm transmitter which can be make with less number of components . The…

How to make simple Oscilloscope using Arduino

In this article you will see how to make simple oscilloscope using arduino . Oscilloscope is a device which is used to analyse and see the signals . But the device is very much expensive…

SIMPLE MOBILE PHONE DETECTOR

SIMPLE MOBILE PHONE DETECTOR: It is a device that detects the mobile phone which is near to it. It detects based on the frequencies that are generated from the mobile when a call is received…

How to make Audio Amplifier using Transistor

Audio Amplifier : Audio Amplifier is a device which strengthen the weak signal. Usually in audio systems we use amplifiers to drive the speakers of high power rating . Now , in this article you…

Make 12V DC to 220V AC Inverter

Hello guys, In this article I will instruct you to make your own 12v DC to 220v AC inverter with less number of components. In this project I use 555 timer IC in Astable multivibrator…

HOW TO MAKE A SIMPLE INVERTER IN HOME

Introduction to INVERTER: An inverter is an electric apparatus that changes direct current (DC) to alternating current (AC). It is not the same thing as an alternator, which converts mechanical energy (e.g. movement) into alternating current.…