Posted by btechzone on April 4, 2011
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The fear of presenting paper is common amongst the students. It is surprising and saddening that students lack the grit in them to go ahead and present just the contents prepared by them toiling hard for months. It is easy to surpass any obstacle when you enjoy what you are doing and it is just what you need to have in mind when you stand before the audience to present your own...
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Posted by btechzone on March 2, 2011
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Android is an open-source software stack for mobile devices that includes an operating system, middleware and key applications. Google Inc. purchased the initial developer of the software, Android Inc., in 2005. Android’smobile operating system is based upon a modified version of the Linux kernel. Google and other members of theOpen Handset Alliance collaborated on...
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Posted by btechzone on March 2, 2011
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Project Document on I2C MEDICAL DEVICE IMPLEMENTATION
ABSTRACT
I2C (I2C) is an acronym for Inter Integrated Circuit. The I2C bus is a bi-directional, two-wire serial bus that provides a communication link between IC’s. There are three data transfer speeds for the I2C bus: standard (100 Kbps), fast (400 Kbps), and high-speed (3.4 Mbps). All are backward compatible. I2C bus has...
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Posted by btechzone on November 28, 2010
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CONDUCTORS
These are materials in which it is easy to get electrons to move and provide a flow of electric current.
Conductors are mostly metals such as gold, silver, copper, iron and lead.
Carbon is a conductor as well as some gases (as in fluorescent tubes) and water containing some chemicals.
These are not perfect conductors and offer some resistance to the flow of current.
The...
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Posted by btechzone on November 28, 2010
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The diagram below shows passive components, resistors, capacitors and inductors, and also electrical components such as switches, relays, motors and lamps. Also shown are the symbols for wires that are not joined ( no physical electrical connection ) and wires that are joined ( a physical electrical connection ).
This next diagram depicts active components, the difference between...
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Posted by btechzone on November 28, 2010
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Amplifiers are used to increase the voltage or power amplitude of signals. They have many applications.
AUDIO VOLTAGE amplifiers boost the amplitude of signals between the frequency range 20 Hz to 20 KHz. This is the range of human hearing.
They are often used as PRE-AMPLIFIERS before the main amplifier.
AUDIO POWER amplifiers provide the power necessary to drive loudspeakers....
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Posted by btechzone on October 27, 2010
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Security is a prime concern in our day-today life. Everyone wants to be as much secure as possible. An access control for doors forms a vital link in a security chain.
The microcontroller based Door locker is an access control system that allows only authorized persons to access a restricted area. The system is fully controlled by the 8 bit microcontroller AT89C2051 which has a...
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Posted by btechzone on September 28, 2010
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Industry is the one side of the Indian economy which has seen the maximum amount of mechanization, simultaneously creating a base for international trading ties at its very core. And the kind of technology today needs to be constantly maintained and upgraded not only due to wear and tear but also with respect to the modernization of the tools that can be effective to stay competitive...
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Posted by btechzone on September 22, 2010
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The main objective of this system is to transmit message or text through ordinary Land Line Telephone from one end (source) to another end (designation). This is get achieved by the DTMF technology. It has two sections one for editing the text and to transmit the edited text and the other section consist for receiving the text message. The system works on the DTMF technology. (Dual...
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Posted by btechzone on September 10, 2010
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This is a power generating method from sunlight.This method of power generation is simple and is taken from natural resource. This need only maximum sunlight to generate power. This project helps for power generation by setting the equipment to get maximum sunlight automatically. This system is tracking for maximum intensity of light. When there is decrease in intensity of light...
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