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10 interesting facts about Bluetooth technology

Almost every device currently on the market supports Bluetooth technology. But what is Bluetooth? Simply put, Bluetooth is a way for two nearby devices to transfer data to each other.

From Make Use, they have picked up unusual information about Bluetooth technology. From it we find out the difference between Bluetooth and other common wireless technologies such as Wi-Fi or NFC, which are the advantages and disadvantages of technology, where the name comes from, and so forth.

What is Bluetooth?

Bluetooth is a standard of wireless technology that aims to offer the ability to connect gadgets between them without a cable. The Bluetooth module is a small part of the chip on your device, which enables wireless communication with Bluetooth devices on other devices. In principle, Bluetooth is used to transmit small amounts of data to avoid using too much battery and maintaining a stable connection over short distances.

Who invented Bluetooth technology?

Bluetooth technology has been developed by a team of Ericsson engineers. Ericsson's Dutch electrician Jaar Haartensen is recognized as a Bluetooth finder. Haardsen said he developed a standard in 1994, but he did not know how to baptize him for a long time.

Why is technology called Bluetooth?

Although Ericsson invented this technology, other companies had to accept Bluetooth and use it in their devices. The name actually comes from Intel, Ericsson, whose employee Jim Kradach offered it.

The technology is named after one of the kings of Denmark and Norway, Harald Bludut. He is known for the association of Danish tribes in the kingdom, similar to Bluetooth technology that combines communication protocols.

Who owns a Bluetooth standard?

No one "does not own" Bluetooth, but its use and improvement is managed by someone else. In order to ensure that Bluetooth becomes a universal communication protocol, in 1998, a group of companies joined forces to establish a Bluetooth Special Interest Group (SIG), a non-profit group.

Today, Bluetooth SIG is developing new Bluetooth standards such as Bluetooth 5 and licensing and membership partnership technology. Currently, Bluetooth SIG has over 30,000 members.

How does Bluetooth work?

Bluetooth transmits data using low-power radio waves, mainly in the 2.4 GHz spectrum. This short-range frequency often uses most devices that require a wireless connection, including Vi-Fi routers.

What distinguishes Bluetooth from other wireless standards is using a technique called "jump to frequency". It's a sophisticated technology, but there's just an explanation. Bluetooth uses 79 radio frequency bands at the above frequency of 2.4 GHz. When sending data, Bluetooth first separates these data into smaller packets. These packages are sent separately through these 79 bands, and Bluetooth can quickly change the band so that no line is clogged.

Thanks to this intelligent data jump, Bluetooth can simultaneously connect up to eight devices and allow them to communicate with each other.

Does Bluetooth use data?

Not! Bluetooth does not use any data. When Bluetooth connects two devices, it forms something called Personal Network (PAN). PAN does not require a service to download Internet or mobile files or anything else.

Bluetooth specifications

You may have heard that Bluetooth is divided into basic speed / enhanced data transfer speed (BR / EDR) and low power (LE). This is in the past and you no longer deal with this division. Most devices in the market in the past five years have Bluetooth 4.0, 4.1 or 4.2 – all have the low power priority.

This process of breaking down data into smaller packages and sending them especially is why Bluetooth is mainly used for small data transfers that do not have to happen quickly. If you need to transfer large amounts of data quickly, there are better wireless Bluetooth protocols. Specifically, Bluetooth 4.2 can send data up to 1Mbps, which will increase to 2Mbps with Bluetooth 5. The distance between the devices is about 10-15m for Bluetooth 4.2, but will reach up to 40m with Bluetooth 5.

What's the difference between Bluetooth and Wi-Fi?

Technical, Wi-Fi and Bluetooth are wireless protocols that allow two devices to communicate with each other without cables. But the advantages and the application of each of these technologies are different. Vi-Fi is a stronger and faster connection, so it uses more batteries. Bluetooth focus is on battery performance.

My computer or my laptop supports Bluetooth?

Bluetooth is a common and widely used technology supported by most smartphones, tablets, laptops and other wireless user devices. However, on desktop computers, technology is not common. If your computer does not support Bluetooth, you can use the motherboard with built-in Bluetooth.

Is Bluetooth technology safe?

Over the years, security experts have discovered several Bluetooth vulnerabilities. The last major vulnerability, called BlueBorne, was opened in 2017. Bluetooth SIG ensures that it has been properly repaired in good time. However, you can take several steps to ensure additional security:

1. Change your four-digit PIN of your Bluetooth. Usually, this is a simple procedure that differs from devices to devices. The default default PIN is 0000, and the hackers know it, so change it as soon as possible if you have not already done so.

2. Turn off Bluetooth when not in use. This is the best thing you can do to ensure the security of your data.

See what is Bluetooth 5 and how it works

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