How Does Bluetooth Technology Actually Work.

Bluetooth, which has become quite popular in today's world, is one of the most fundamental aspects of wireless communication which most modern devices and systems rely on to function effectively.

Bluetooth was invented in 1989 by a team of Ericson engineers while working on a technology that would enable devices to connect together at short range and named after King Harald Bluetooth that helped unite Denmark and Norway together.

The invention and style was influenced by an older technology developed during the second world war, that allowed the use of wireless communication; FHSS. FHSS known in full as Frequency Hopping Spread Spectrum was developed to enable communication of military men to go uninterrupted by enemy radio and it's this same technology that bluetooth technology uses to continue the smooth connection between devices when there are possible interruptions, this it does by dividing the frequency band into several channels so that it can switch from one channel to the other.

How Do The Devices Connect?

Two bluetooth active devices A and B come in range with each other, for them to connect they have to be paired together, it's usually manually for the first time, while they pair, they share a code for identification in the future, when this code has been identified and matched, device A and B are said to be connected to each other and can share data among themselves without interference from any unpaid device. 

Uses Of Bluetooth technology.

Ever since it was first launched in 1990, it has changed the tech community and its use, incorporated into devices.

√ It's used to share files among devices. 

√ It's used as a speaker. We now have wireless speakers that use bluetooth, though bluetooth speakers are quite limited unless the speaker itself is very loud.

√ Used in Headsets.

√ To control devices like drones and to remotely control certain home devices.

√ General communication.

Though bluetooth still has some limitations as data being sent with a bluetooth technology isn't well secured, bluetooth has definitely changed the wireless network.

A typical bluetooth device works on a 2.4 GHz and connects up to an average distance of 10 metres. With advancements being developed, newer bluetooth Technologies can now connect more than 100 metres. Overall the connectivity distance depends on the bluetooth version and capabilities of the devices.

One thing to note about a bluetooth connection is that its connection may be interfered with by obstacles, both physical and electromagnetic waves.