2. INTRODUCTION TO BLUETOOTH Named after tenth-century danish King Harald Blatand. Developed by Special Interest Group (SIG). Bluetooth wireless technology is a short range communication system intended to replace cables connecting portable or fixed electronic devices. It provides the way to connect and exchange information between devices like PCs,Laptops,Digital cameras,Mobile phones,etc.

3. BLUETOOTH BASIC FUNCTION Bluetooth networking transmits data via low power radio waves. It operates in ISM band at 2.4 GHz (Exactly between 2.402GHz to 2.480 GHz). It can operate in noisy frequency environments as it uses a fast acknowledgement & frequency hopping scheme to make the link robust. Bluetooth devices avoid interfering with other systems by sending weak signals of about 1mW. It can connect upto 8 devices simultaneously.

4. When the devices are connected then they form a network called Personal Area network or Piconet.

5. BLUETOOTH SPECIFICATION PROTOCOL STACK

6. BENEFITS OF BLUETOOTH TECHNOLOGY It’s a wireless technology Globally available,easy to use and has secure connection. It reduces interference. It consumes low power and its data rate is upto 3Mbps supported for version 2.0+EDR. Its operating range is 10 meters(can be increased or decreased) which is most commonly found in mobile devices

7. APPLICATION OF BLUETOOTH Wireless networking can be done. Bluetooth peripherals like printers, mice and keyboards,cell phones,remote controls,hearing aids,play station,etc.. Medical applications. Bluetooth car kit are also available. Certain data logging equipment transmits data to a computer via bluetooth.

8. Reference www.help2engg.com