How Bluetooth Technology Works

The Bluetooth technology is wireless technology and the main purpose of Bluetooth is used for the exchanging of data in between the two electronic devices. There is a short distance between the two electronic devices and it is built by using the personal area network. This technology is developed by the Bluetooth special interest group and its physical range is from 10m to 100m. The Bluetooth device can connect up to seven devices and it is used in the industry like smartphones, personal computers, and gaming consoles, etc. The IEEE standardized Bluetooth as IEEE 802.15.1, but the standards are maintained for short periods.

What is a Bluetooth Technology?

The Bluetooth is used for transfer of data between the electronic devices. There is a small distance between the two electronic devices, to transfer the data.

This technology is a technology is a wireless technology and the transfer of data is by without using any connecting cables. Bluetooth device is a transceiver, that can transmit data and receive the data.

Working  Principle of Bluetooth Technology

Generally, the Bluetooth is a protocol with the architecture of master and slave. Which we can say it as a one master device can communicate with the other 7 devices.

In the starting use of Bluetooth technology, there is only data transfer between the one device to another device, but now this technology can communicate with the two or more than two Bluetooth devices.

In actual fact, the Bluetooth can create a new standard and it is called as a PAN (personal area network). The Bluetooth has come up with the more effective ad-hoc network and allows the communication without traditional host-based networking.

Hence this type of Bluetooth networking is known as a piconet and the combination of two or more piconets is called as Scatternet. In this, the device is used as a master in the piconet and another one is the slave.

Hence this type of Bluetooth networking is known as a piconet and the combination of two or more piconets is called as Scatternet. In this, the device is used as a master in the piconet and another one is the slave.

History of Bluetooth Technology

In the starting days, the Bluetooth technology is named as a short link. Later on, it is named as a Bluetooth in the year of 1989 by Nils Rydbeck, CTO at Ericsson Mobile in Lund, Sweden, and by Johan Ullman.

According to the two inventions which are SE 8902098-6 and SE 9202239 of the Johan Ullman are used for the development of wireless headsets. The specifications are based on the frequency hopping spread spectrum technology.

The name Bluetooth is the Anglicised version of the Scandinavian Blåtand. The epithet of the tenth-century king Harald Bluetooth who has united dissonant Danish tribes into a single kingdom.

The name was proposed in the year of 1997by Jim Kardach of Intel and the system is developed to allow the communication between the mobile phones and computers.

Different Versions of Bluetooth technologies

The following table shows the different versions & its specifications of the Bluetooth technology.

Bluetooth versions	specification
Bluetooth v1.0 to v1.08	Mandatory Bluetooth hardware device and address
Bluetooth v1.1	IEEE standard 802.15.1-2002
Bluetooth v1.2	Faster connection
Bluetooth v2.0+EDR	Enhanced data rate
Bluetooth v2.1	Secure simple pairing
Bluetooth v3.0	High-speed data transfer
Bluetooth v4.0	Low energy consumption recently used in apple I – phone 4s

Different types of Bluetooth technology

The following are the classification of the Bluetooth technology

1. Bluetooth headsets
2. Stereo headset
3. In- car Bluetooth headset
4. Bluetooth-equipped printer
5. Bluetooth enables webcam
6. Bluetooth keyboard
7. Bluetooth GPS device

Advantages of Bluetooth Technology

• The Bluetooth devices are wireless technology
• The consumption of energy by using the Bluetooth is very less
• The transfer of data like music, files is very easy and convenient
• The cost of the Bluetooth is very less
• The Bluetooth can be assembled in any devices

Applications

The following are some applications of the Bluetooth technology

• Telephones
• Headsets
• Computer accessories
• Multimedia devices
• LAN peripherals
• We can develop a real-time embedded application using Bluetooth and microcontrollers
• Android Controlled Electronic Notice Board System using Bluetooth technology

Disadvantages of Bluetooth Technology

• The transfer of data between the two devices is only 1Mbps
• The Bluetooth will not work, when they are in a long distance
• Battery used to increase on devices

In this article, we are explained about the how Bluetooth technology works and their application. I hope by reading this article you have gained some basic knowledge on Bluetooth.

If you have any queries about this article or implementation of mini Electronics and Communication projects, please free to comment in the below section. Here is the question for you, what are the different functions of the Bluetooth technology?