How Does Bluetooth Know Which Device to Connect to?

    We all love to listen to music. Our way of reaching music has evolved with technology over time. MP3 players, our sound system in cars and …

    How Does Bluetooth Know Which Device to Connect to?

    We all love to listen to music. Our way of reaching music has evolved with technology over time. MP3 players, our sound system in cars and   evolved into portable speakers. Luckily, we all said goodbye to those headphone cables that get tangled as soon as we let them go. Of course that B to luetooth technologywe owe

    from our computer with the Bluetooth feature. we can operate multiple devices such as mouse, keyboard and headset at the same time. Well, while doing all this, how do they decide what kind of relationship with which device they will have in the middle? Let’s take a look at Bluetooth technology and the answers to these questions together.

    Bluetooth is a type of technology based on data transport system between two devices with radio waves.

    It has a data transport system just like Wi-Fi; However, while the Wi-Fi system establishes a relationship with the signal distributor in the middle of a device, data transfer is provided by establishing a connection in the middle of two devices that have this feature in Bluetooth technology. In this system, whose wavelengths are measured from the GHz unit, 2.4 billion waves are emitted per second.

    Bluetooth is named after the Scandinavian ruler Harald Bluetooth Gormsson.

    Jim Kardach, an employee of Intel, one of the valuable companies of the period working on “Short Range Radio Technology”, became the name father of Bluetooth technology, inspired by a book he read about the Viking ruler Harald Bluetooth Gormsson, who united Denmark and Norway at that time. According to what is told, a Viking ruler her color turns blue as she rots.

    A Bluetooth-enabled device can communicate and exchange information with multiple devices without confusion.

    Bluetooth is mostly used for short distances and low signals.   working principle. Each device transmits information with signals in a different frequency range in the middle of the other device to which it is connected. Devices midway during data transfer a network of signals they form. This is called a piconet. Thanks to this network, the devices do not prevent the transfer in the middle of each other and there is no confusion.

    When Bluetooth-enabled devices are paired, a meeting takes place like in the middle of people.

    Every technological device addresses assigned to them by their manufacturers so they have names. They introduce themselves to indicate that they are faithful to each other before the relationship. We can compare this to a process where we say our name and introduce ourselves when we meet someone new.

    Then they decide how to transfer information in the middle. In the next data exchange, the two devices can establish a relationship without interrogation. Because we too We don’t meet again and again every time we see each other.

    The devices change frequency 1600 times per minute while making contact in their middle.

    This is called frequency jumping. Let’s explain with an example: Let’s take a crowded place where everyone is talking loudly in their midst. nobody’s we can’t understand exactly what you are talking about but we hear their voices and even perceive some words. However, if your ears are not as beautiful as Legolas’s, we may not be able to decipher what the conversation is about.

    Because the dynamics of every conversation is different and the subject can change even with instant jokes.  Here is the one that transfers the data every minute in frequency jumping. signal frequencychanges to avoid interference with other devices and to prevent interference from them.

    In the early days of Bluetooth, the biggest problem was the vulnerability, it was not difficult to capture someone’s personal data.

    Bluetooth technology has continued to be developed since its inception. This situation in time with add or remove capabilities to trusted devices they got it done. Today, we can connect more than one device to each other in the form that we allow, from our phones or computers with faith. Just like Harald Bluetooth uniting Denmark and Norway.

    • Sources: Brunch Education, Bright Side
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