The Bluetooth technology was implemented in the year 1994 by Jaap Haartsen and Sven Mattison. They were working in a mobile company called “Ericsson” which is located in Sweden. After this, five corporations came forward and combined to form the Bluetooth special interest group. Then they implemented the Bluetooth protocol design version 1.0 in the year 1999. It permitted to progress applications and communicating services over the interoperable radio modules and also data communication protocols. It was intended to give the information on the conditions, competencies and their architectures, a  number of usage modules were recognized by the Bluetooth SIG.

What is a Bluetooth Device?

A Bluetooth is a high-speed, low powered wireless device that is intended to connect mobile phones or any other movable equipment together. It is an IEEE 802.15.1 specification for the use of low-power radio communications to connect various network devices, namely computers, mobile phones and also other network devices over small distances without using wires. The transmission of wireless signals can be done typically up to 10meters with Bluetooth over small distances.

It is attained by low-cost embedded transceivers into the devices. It supports on the 2.45GHz frequency band and can support up to 721KBps along with 3-voice channels. This frequency band has been fixed aside by international contract for the use of scientific, industrial, medical devices (ISM) and rd-compatible with 1.0 devices.Simultaneously, Bluetooth device can connect up to eight devices and each device gives a unique 48-bit address from the IEEE 802 standard with the point to point connections or multipoint which are being made.

How to Connect a Bluetooth with Other Devices

The following steps involve to knowing how to connect a Bluetooth with other devices

Turn Bluetooth ON/OFF

• Open the device’s settings
• Tap Bluetooth and ON/OFF the switch
• At the top of the mobile screen, a Bluetooth symbol shows when Bluetooth is switched ON

Note: To conserve battery, switch off Bluetooth option when you’re not using it.

Connect Bluetooth Device

To pair with a Bluetooth device, first switch ON your gadget’s Bluetooth. Before you can pair your device with any other Bluetooth enabled gadget, you must connect them. After you have connected the devices, in the future, you can automatically connect the devices when they are in the range of one another.

Unpair, or Change a Bluetooth Device Name

• If your Bluetooth devices have several connections, you can choose which connection to use.
• Your Bluetooth enabled gadget has a Bluetooth name that new devices see when you pair them via Bluetooth. You can change your Bluetooth device’s name.
• Open your Bluetooth enabled gadgets Settings
• Tap Bluetooth and Make sure Bluetooth is turned on.
• Next, to the connected device, you’d like to change, tap Settings
• On the mobile screen that opens, you can change the name of the device and pick profiles, or forget the device.
• Tap Rename the Bluetooth enabled device
• Enter a new name for your device and Tap Rename.

Why Bluetooth Connecting Fail

Bluetooth device mainly depends on both software and hardware to function properly. So if your gadgets can’t speak a common Bluetooth language, they won’t be able to pair.

In general, these devices support the standard Bluetooth 4.2, declared last year, should still be able to connect with devices using, say, the early Bluetooth 2.1, launched back in the year 2007.

The exceptions are devices that use a low energy version named Bluetooth Smart, which works on a variety protocol than older. Bluetooth enabled devices are not backward compatible and won’t pair with older devices that support Classic Bluetooth.

Bluetooth enabled devices that commonly use Bluetooth Smart comprise personal health gadgets like heart rate monitors, fitness bands, etc. These devices will only connect with a smartphone that also uses Bluetooth Smart or Bluetooth Smart Ready.

The devices also available with particular Bluetooth profiles. If Bluetooth is the mutual language for connecting devices, you can think of a profile as a dialect connected with a certain use. For example, you probably aren’t going to be capable of connecting a camera and a mouse because a camera doesn’t support the Human Interface Device Profile. But if both a mobile and a wireless headset support the Hands-Free Profile, you should be able to connect them.

However, if the connecting failure is a matter of consumer error, there are some steps you can fix Bluetooth pairing problems

• Make sure Bluetooth is Activated or Not
• Switch to Discoverable Mode.
• Delete a paired device from a phone and search for it
• Make sure the pairing devices are in near enough closeness to one another.
• Decide which combining process your device employs
• Charge up both pairing devices
• Stay away from the WiFi router
• Update the firmware of the hardware
• Power down likely interferes
• Get away from a 3.0 USB port

Advantages of Bluetooth Technology

• It eliminates radio interference problem by using a technique, namely “Speed Frequency Hopping”. This method employs 79-channels of the specific frequency band, with every device, retrieving the channel for only 625 microseconds, i.e. the Bluetooth device must toggle between transmitting & receiving data from one time period to another. This indicates the transmitters change frequencies 1,600 times every second, meaning that additional devices can make full use of an incomplete slice of the radio spectrum. This ensures that the interference won’t take place as each transmitter (TX) will be on different frequencies.
• The power consumption of the chip (consisting of the transceiver) is low, at about 0.3mW, which makes it possible for least use of battery life.
  It assurances security at the bit level. The verification is controlled using a 128bit key.
  It is possible to use a Bluetooth device for both transferring and verbal communication as this device can support data channels of up to 3 comparable voice channels.
  It disables the limits of the line of sight and one-to-one communication as in another mode of wireless communications such as infrared.

Applications of Bluetooth

The applications of Bluetooth device include the following

• Cordless Desktop
• Ultimate headset
• Automatic synchronization
• Multimedia Transfer

This article gives the information about how to connect a Bluetooth with other devices, and applications. We hope that the above information given in this article is helpful in providing some good insights and understanding of the project. Furthermore, if you have any queries regarding this article or to implement Bluetooth based projects, you can comment in the below section. Here is a question for you – What are the different versions of Bluetooth?