Hi,

I need some details regarding 'Wireless CDMA/GMS based Data Transmission'.
Basically a document/article explaining how it works practically and which are the products already available in the market.
What kind of data can be transmitted through this technology.?
Any technical limitations i may face later while using this in my project?

This is regarding a project which i want to work for my final year which is in the initial state.

Thanks in advance,
ZBasheera ....etc

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CHAPTER I
1.1 Abstract
The objective of this project is to enable users to remotely control their home appliances and systems using a cell phone-based interface. To access the control unit, the user should send an authentication code along with the required/desired function/action to his/her home control system via GSM. Upon being properly authenticated, the cell phone-based interface at home (control unit) would relay the commands to a microcontroller that would perform the required function/action.
1.2 Problem ....etc

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hi.
i need a report and ppt as early as possible ....etc

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DTMF Based Interfacing and Control of Induction Motor using TRIAC



The AC induction motor is the most commonly used AC motor in industrial application because of its simplicity, rugged construction, and relatively low manufacturing costs. The reason that the AC induction motor has these characteristics is because the rotor is a self-contained unit, with no external connections. This types of motor devices its name from the fact that AC currents are induced into the rotor by a rotating magnetic field.
Our project d ....etc

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I don't know how to prepare the documentation at this particular topic...if it is possible send me the documentation. ....etc

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this is bhupinder.
i m the student of btech 3rd year i want the full description about dtmf using 8051 microcontroller with dtmf decoder. ....etc

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EMBEDDED SYSTEMS
1.1 Introduction:
An embedded system is a system which is going to do a predefined specified task is the embedded system and is even defined as combination of both software and hardware. A general-purpose definition of embedded systems is that they are devices used to control, monitor or assist the operation of equipment, machinery or plant. Embedded reflects the fact that they are an integral part of the system. At the other extreme a general-purpose computer may be used to control the operation ....etc

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http://electronic-circuits-diagramsremotecontrolsimages/5.gif
a circuit of a remote control unit which makes use of the radio frequency signals to control various electrical appliances. This remote control unit has 4 channels which can be easily extended to 12. This circuit differs from similar circuits in view of its simplicity and a totally different concept of generating the control signals. Usually remote control circuits make use of infrared light to transmit control signals. Their use is thus limited to a very confined area a ....etc

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INTRODUCTION


In the present world of wireless technology every thing is going to be digital and wireless, and the cell phone is the key player in wireless technology today.
And today technology made the possessing of a mobile, considered as a basic commodity.
And the trends in wireless technology changing day-by-day and today the working is going on how to develop remote devices with out the presence of man and to reduce to the time factor and labor, and our project be ....etc

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Home appliance & pc Cursor control by mobile phone (DTMF)
Aim of project:-
The main aim of the project is to implement an interfacing system to remotely control electrical appliances using the mobile network.
Using the system one can remotely switch on or off electrical machine using mobile phone from anywhere.
PROGRESS REPORT
Operating Environment
The control system will include two separate units:-
the cellular phone.
and the control unit.
There will be two operating ....etc

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