Bluetooth Basics

Bluetooth is another wireless communicating device which uses radio waves to communicate with other Bluetooth enabled devices. Uses of Bluetooth are transferring data from one device to other, connecting to Bluetooth enabled devices such as stereo’s, headphones and other audio/visual devices.

It uses using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz.


It was invented by telecom vendor Ericsson in 1994 as a wireless alternative to RS-232 data cables

It creates a personal area network between devices connected to each other for transfer of data

Common applications are:

  • 1.       Consumer electronics

a.       Mobiles

b.      Headphones

c.       Mouse

d.      Keyboards

  • 2.       Laptops
  • 3.       Electronic gadgets

a.       Wireless watches

b.      Wrist bands

It has a very limited range up to a few meters, typically works within the vicinity of the host device

a Bluetooth mouse

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