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Circuit Design of Pulse Amplitude Modulation

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Pulse Amplitude Modulation

Pulse Amplitude Modulation

Today communication is the heart of the technology. Communication is achieved over a transmitter and a receiver through signals. These signals carry the information through modulation. Pulse Amplitude Modulation is one of the kinds of modulation techniques used in signal transmission. Pulse amplitude modulation is the simplest form of modulation. It is Analog to digital conversion method where the message information is encoded in the amplitude of the series of signal pulses.

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Different Types of Wireless Communication Technologies

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Wireless communication plays a significant role in day to day life. Besides communication, wireless technology has become an integral part of our daily activities. The transmission of data or information from one place to another wirelessly is referred as wireless communication. This provides an exchange of data without any conductor through RF and radio signals. The information is transmitted across the devices over some meters to hundreds of kilometres through well-defined channels.

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Different Types Of Motion Sensors, Working And Application

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Motion Sensors

Motion Sensor

Motion sensors are commonly used in security systems. They work based on a wide variety of principles and are used in a wide variety of applications. Typical usage could be in the exterior doorways or windows of a building for monitoring the area around the building. Upon detecting motion, they generate an electrical signal based on which some actions are taken. Some operate in much the same way as a military radar scanner, while others work based on vibration, infrared radiation and, even sound. All of these different types of sensors have different strengths and weaknesses, which are important to take into account when making a decision to choose a particle motion detection sensor.

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Home and Industrial Safety Using Fire and Gas Detection System Using GSM

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Home and Industrial Safety Using Fire and Gas sensor System Using GSM

Home and Industrial Safety Using Fire and Gas sensor System Using GSM

In this article, we are going to give a brief explanation on how to implement “Home and Industry Safety using Fire and Gas Detection System using GSM”. The main aim of this project is to monitor for liquid petroleum gas (LPG) leakage to avoid fire accidents, providing house/industry safety feature where the security has been an important issue. The system detects the LPG leakage using a gas sensor and flames by a flame sensor that alerts the consumer about the gas leakage by sending SMS with the help of GSM module which is connected preprogrammed microcontroller.

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Fundamentals of RS232 Tutorial and Interface

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Fundamentals of RS232

Fundamentals of RS232

In RS 232, the term RS stands for recommended slandered and the number 232 specifies the latest version.There are various types of serial communication systems were designed to transfer the information over large distances through some variety of information cable. The term serial most frequently denoted to the RS232 port which is called as the serial port, and therefore the several devices designed to be compatible with it using serial cable which is plugged into it. Basically, all long distance communication transfers the information one bit at a time, instead of in parallel, as a result of it reduces the price of the cable. [Read more…]

Know the Procedure of GSM Modem Interfacing with 8051

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GSM Modem

GSM Modem

The acronym of the GSM modem is Global System for Mobile Communications, it is a wireless communication module, used to  make a computer or any processor to communicate over a network. This modem uses a variation of TDMA(Time Division Multiple Access) and is the most commonly used of the digital wireless telephony technologies like TDMA, GSM and CDMA.A GSM modem needs a SIM card to operate through a n/w range subscribed by the network operator. This modem can be connected to a computer via a serial, Bluetooth or USB connection. A GSM modem is also a standard GSM mobile phone with a suitable cable and software driver to connect to a USB port on your PC. Generally, this modem is preferred instead of a GSM mobile phone. This article describes how GSM modem interfacing with 8051 microcontroller. [Read more…]

Phase Locked Loop System Working and Applications

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PLL IC

PLL IC

In our day-to-day life, we got used with various types of communication systems such as a radio communication system, telecommunication system, wireless communication system, optical communication system and so on to communicate with others. All these communication systems we use in our regular life are controlled using different control systems such as a phase locked loop or PLL, cooperative control, networked control and so on. Here, in this article we discuss about phase locked loop system working and PLL applications. But, primarily we must know what is PLL. [Read more…]

What is Modulation? Different Types of Modulation Techniques

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Types of Modulation

Types of Modulation

Communication is the basic attraction of mankind as it gives the knowledge of what is going on around us. In our daily life, we communicate with many people and use the entertainment media like television, radio, internet and newspaper to get ourselves involved. These entertainment media act as a source of communication. Electronic communication comprises TV, radio, internet, etc. When we want to transmit a signal from one location to another, we have to strengthen the signal. After undergoing strenghthening process the signal travels to a long distance. This is called as modulation, and this article gives an overview of the modulation and types of modulation techniques. [Read more…]

MIMO – Multiple Input and Multiple Output Wireless Communications

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MIMO Wireless Communications

MIMO Wireless Communications

MIMO or Multiple-Input Multiple-Output can be referred to as the communication channel created with multiple transmitters and receivers of an antenna to improve communication’s performance. Since their initial development in the year 1990, MIMO Wireless Communications have become integral part of the most forthcoming commercial and next generation wireless data communication systems. MIMO is one among the several types of Smart Antenna Technologies. Nowadays MIMO techniques are used in different technologies such as WI-FI and LTE (long term evolution). [Read more…]