Sunday, July 24, 2005



Most of us know about bluetooth.Thanks to bluetooth its possible to connect a mobile to any other bluetooth compatible device without the messy wires.Bluetooth is wireless and automatic, and has a number of interesting features that can simplify our daily lives.At times i get these crazy ideas to make evrything in my room compatible with bluetooth.My ideas vary from being able to turn on or off the lights with bluetooth or reduce the fans speed and so on.I aint no tech wiz so not sure if any of those are possible.If they are and if you know how to do so please do let me know.Drop me a line at

For those of you who dont know much about blutooth,lets start from the basics.
Bluetooth is a standard developed by a group of electronics manufacturers that allows any sort of electronic equipment -- from computers and cell phones to keyboards and headphones -- to make its own connections, without wires, cables or any direct action from a user. Bluetooth is intended to be a standard that works at two levels:
It provides agreement at the physical level -- Bluetooth is a radio frequency standard.
It also provides agreement at the next level up, where products have to agree on when bits are sent, how many will be sent at a time and how the parties in a conversation can be sure that the message received is the same as the message sent.

The companies belonging to Bluetooth Special Interst Group want to let Bluetooth's radio communications take the place of wires for connecting peripherals, telephones and computers.

The Bluetooth Solution

Bluetooth is intended to get around the problems that come with both infrared and cable synchronizing systems. The hardware vendors, which include Siemens, Intel, Toshiba, Motorola and Ericsson, have developed a specification for a very small radio module to be built into computer, telephone and entertainment equipment. From the user's point of view, there are three important features to Bluetooth:
1)It's wireless. When you travel, you don't have to worry about keeping track of a briefcase full of cables to attach all of your components, and you can design your office without wondering where all the wires will go.
2)It's inexpensive.
3)You don't have to think about it. Bluetooth doesn't require you to do anything special to make it work. The devices find one another and strike up a conversation without any user input at all.
Bluetooth Frequency
Bluetooth communicates on a frequency of 2.45 gigahertz, which has been set aside by international agreement for the use of industrial, scientific and medical devices (ISM).

A number of devices that you may already use take advantage of this same radio-frequency band. Baby monitors, garage-door openers and the newest generation of cordless phones all make use of frequencies in the ISM band. Making sure that Bluetooth and these other devices don't interfere with one another has been a crucial part of the design process.


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