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by Tarun Agarwal 6 years ago

Basic Intrusion Detection System

Look at this quote by Admiral Grace Hopper “Life was simpler before world war II. After that we had systems” So, what does this actually means? With invent of systems (computer systems) came the increase for various needs...

by Tarun Agarwal 6 years ago

Digital Thermometers and Its Applications

Thermometers A thermometer is a device used to measure the temperature of any particular device or living body and displays the reading. A thermometer scale can be in Fahrenheit or Celsius. 2 Kinds of Conventional Thermometers used earlier 1....

by Tarun Agarwal 6 years ago

Sensors – Types & Applications

Pressure Sensors Pressure sensors are generally used to measure pressure of gas or liquids. Usually a pressure sensor acts as a transducer. It generates the pressure in analog electrical or digital signal. There is also a category of pressure...

by Tarun Agarwal 6 years ago

Sound Activated Switch

Consider a situation in a bank or any organization where a sudden invasion by the burglars has taken place. Now all the staff has been handcuffed by the robbers and the main locker room full of valuable resources is at the mercy of the...

by Tarun Agarwal 6 years ago

Voice Recording and Playback Circuit

You can make a voice recording and play back circuit using the easily available IC APR 9301. The circuit can record and play back the voice up to 30 seconds. It can be used in automatic answering devices, door phone etc. The IC APR 9301...

by Tarun Agarwal 6 years ago

How Does an Electronic Nose Work?

Introduction: The electronic nose is a device that detects the smell more effectively then the human sense of smell. An electronic nose consists of a mechanism for chemical detection. The electronic nose is an intelligent sensing device...

by Tarun Agarwal 6 years ago

How ATMs Work?

Introduction: The automated teller machine (ATM) is an automatic banking machine (ABM) which allows customer to complete basic transactions without any help of bank representatives. There are two types of automated teller machine (ATMs)....

by Tarun Agarwal 6 years ago

Embedded System Design Process

Simulation Software Simulation is the process of designing a model of a real system and conducting experiments with model for the purpose either of understanding the behavior of the system or of evaluating various steps to achieve the system...

by Tarun Agarwal 6 years ago

RS232 – Basics, Applications and Interfacing

What is RS232? The RS-232(X) is a serial communication protocol, commonly used for transferring and receiving the serial data between two devices.  It supports both synchronous and asynchronous data transmissions. Many devices in the industrial...

by Tarun Agarwal 6 years ago

Transistors – Basics, Types & Baising Modes

Introduction to Transistor: Earlier, the critical and important component of an electronic device was a vacuum tube; it is an electron tube used to control electric current. The vacuum tubes worked but they are bulky, require higher operating...