Envelope Detection This demo implements two common methods of envelope detection and tests them with a sample speech signal and a modulated sine wave. The envelope of a signal is the outline of the signal. It can be think of an envelope detector as a system that connects all of …

Blinking LEDs in Sequence: This is another basic introductory circuit of micrcontroller. In this circuit we turn on and off the leds in sequence bu using microcontroller AT89C2051, one LED is on at one time then after some delay it becomes off and another LED turns on and so on. …

Here is a simple circuitry which will help you to understand how will you interface and LED with a micro-controller. The code is written to turn on and off the LED after some short delay, this is one of the beginning circuit when one tries to gain some hands on …

Sample and Hold Sample and hold circuit is the first step in the process of analog to digital conversion. It actually takes samples of the analog signal at specific time intervals depending on the clock frequency. Clock frequency is the frequency at which we are taking samples of the analog …

Introduction Here we are designing and implementing the four way traffic control system using  TTL logic. There are different variations of traffic control. The most common ones that are seen are signs (board), road lines, islands (division between opposite lanes of vehicles), and traffic lights. The first one mentioned is …