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100px-Bluetooth headset

A typical Bluetooth mobile phone headset.

About[]

Bluetooth is an open wireless protocol for exchanging data over short distances from fixed and mobile devices, creating personal area networks (PANs). It was originally conceived as a wireless alternative to RS232 data cables. It can connect several devices, overcoming problems of synchronization.

Bluetooth is a standard and a communications protocol primarily designed for low power consumption, with a short range (power-class-dependent: 1 meter, 10 meters, 100 meters) based on low-cost transceiver microchips in each device. Bluetooth makes it possible for these devices to communicate with each other when they are in range. Because the devices use a radio (broadcast) communications system, they do not have to be in line of sight of each other.

List of applications[]

More prevalent applications of Bluetooth include:

  • Wireless control of and communication between a mobile phone and a hands-free. This was one of the earliest applications to become popular.
  • Wireless networking between PCs in a confined space and where little bandwidth is required.
  • Wireless communication with PC input and output devices, the most common being the computer mouse, keyboard and printer.
  • Transfer of files, contact details, calendar appointments, and reminders between devices with OBEX.
  • Replacement of traditional wired serial communications in test equipment, Global Positioning System receivers, medical equipment, bar code scanners, and traffic control devices.
  • For controls where infrared was traditionally used.
  • For low bandwidth applications where higher [USB] bandwidth is not required and cable-free connection desired.
  • Sending small advertisements from Bluetooth-enabled advertising hoardings to other, discoverable, Bluetooth devices.
  • Wireless bridge between two Industrial Ethernet (e.g. PROFINET) networks.
  • Two seventh-generation game consoles, Nintendo's.
  • Dial-up internet access on personal computers or PDAs using a data-capable mobile phone as a modem.

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