Bluetooth how does it work




















We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. Cookie Settings. Learn why people trust wikiHow. Download Article Explore this Article Steps. Tips and Warnings. Related Articles. Author Info Last Updated: October 8, Understand how Bluetooth works. Bluetooth is a wireless technology that allows two different devices to connect. Every Bluetooth device has one or more profiles installed. These profiles determine what the device is capable of, such as "Hands-Free" mobile headsets or "Human Interface Device" computer mouse.

In order for two devices to connect, they must both have the same profile. You can generally tell what devices will work with each other by looking at them logically. You wouldn't be able to pair a mouse with a camera, since the camera isn't designed to be controlled by the mouse. On the other hand, it would make sense to connect a headset to a mobile phone, since they are designed to work together.

Learn the most common pairings. If you are unsure as to whether your devices will work together, there are several cases where Bluetooth use is very popular. Knowing these can help you determine how to connect your devices. Connecting a hands-free headset to a mobile phone. Connecting wireless mice, keyboards, and printers to laptops and other computers.

Connecting portable media players and smartphones to speakers and car stereos. Wirelessly connecting video game controllers to computers and game consoles. Connect your devices. The method to connect to devices will vary in every situation, but generally it follows the same basic process.

You will need to make one device discoverable, and then search for devices with the second device. For example, if you wanted to connect a headset to your smartphone, you would put the headset into the discovery mode refer to the documentation , and then search for discoverable devices on your smartphone.

Enter a PIN if asked. You may be asked to enter a PIN when connecting your devices. If you don't know the PIN, it is generally , , or This can vary for some devices, and if you can't find it you may need to reset the device. Use the device. Once your devices are connected, you can start using them in conjunction.

For example, you may have connected your smartphone to some wireless speakers, allowing you to play music through them. You may have connected a mouse to your laptop, and now you can use your mouse to move the cursor. When connecting a Bluetooth device to a computer, you may need to install the drivers for the device.

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If your heart starts beating faster with the announce of a new camera, graphics card or game, then you are at the right place. Contact About Us Privacy Policy. How Bluetooth Works? Everything You Need to Know. What is Bluetooth? Bluetooth Range Manufacturers can alter the Bluetooth settings on their devices to reach the range they require while maximizing battery life and providing the highest signal quality.

These are some of the factors that affect Bluetooth range. Radio Spectrum: The frequency band of Bluetooth technology makes it a viable choice for wireless communication. Physical layer PHY : This defines certain fundamental features of how the radio transmits and receives data, such as data rate, error detection and correction, interference protection, and other techniques that influence signal clarity over various ranges.

Receiver sensitivity: It is the lowest signal strength at which a receiver can still receive and decode data accurately.

Transmission power: As you may assume, the higher the signal strength delivered, the greater the range that can be obtained. However, raising the transmission power will empty your battery more quickly.

Antenna gain: It is the process of converting electrical impulses from the transmitter to radio waves and then back to electrical signals on the receiving end. Path loss: Distance, humidity, and the medium through which the signal travels are all factors that can diminish the signal, such as wood, concrete, or metal. Is Bluetooth Better than Wi-Fi? Conclusion Bluetooth has always been a bit annoying to use like any wireless technology.

About author Uneeb Asim A finance major with a passion for all things tech, Uneeb loves to write about everything from hardware to games his favorite genre being FPS. When not writing, he can be seen in his natural habitat reading, studying investments, or watching Formula 1. Related posts.

PCIe vs. What's the difference? What is Firmware? Everything you need to know. It all depends on what the manufacturer decided was sensible for their product. Some devices require a code for security while being paired with another device. This is an example of authentication and it ensures that the device you are setting up that trusted relationship with is the one you think it is, rather than another device somewhere else in the environment.

For example, many cars let you take calls without taking your hands off the steering wheel. The first time you want to use this facility, you will have to pair your phone and the car's audio system using the car's entertainment display and your smartphone together.

The car gives you a number to type in. Your phone lets you know a device wants to pair using a numeric code. You enter the code off the entertainment display to confirm that this is an authorized pairing. After that, you can use the hands-free phone system without ever needing to pair again. The user also has control over a device's visibility to other Bluetooth devices. On a computer or smartphone, for example, you can also simply switch the device's Bluetooth mode to "nondiscoverable" or simply disable Bluetooth until you need it again.

Sign up for our Newsletter! Mobile Newsletter banner close. Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe. How Bluetooth Works. Although Bluetooth technology has become synonymous with headphones, it's used for all kinds of wireless devices. How much data will be sent at a time? For instance, serial ports send data 1 bit at a time, while parallel ports send several bits at once.

How will they speak to each other? All of the parties in an electronic discussion need to know what the bits mean and whether the message they receive is the same message that was sent. This means developing a set of commands and responses known as a protocol. Bluetooth Connections Wireless communication is now a common phenomenon. Why Is It Called Bluetooth? Bluetooth Range " ". Bluetooth technology powers both smartphones and smart speakers.

Radio spectrum : Bluetooth technology's frequency band makes it a good choice for wireless communication. Physical layer PHY : This defines some key aspects of how the radio is used to transmit and receive data such as the data rate, how error detection and correction is performed, interference protection, and other techniques that influence signal clarity over different ranges.

Receiver sensitivity : The measure of the minimum signal strength at which a receiver can still receive and correctly decode data. Transmission power : As you may expect, the higher the transmitted signal strength, the longer the range that can be achieved.

But increasing the transmission power will also deplete your battery faster. Antenna gain : Essentially, this is changing electrical signals from the transmitter into radio waves and back again on the receiving end. Path loss : Several factors may weaken the signal, including distance, humidity, and the medium through which it travels such as wood, concrete or metal.

Bluetooth Security Bluetooth technology includes a number of security measures that can satisfy even the most stringent security requirements such as those included in the Federal Information Processing Standards FIPS.

WiFi and Bluetooth are both wireless technologies for connecting devices, but while Wifi is primarily used to connect devices to the Internet, Bluetooth is used to transfer data across electronic devices over short distances. What is a Bluetooth driver? A Bluetooth driver allows wireless communication between a Bluetooth enabled laptop, desktop computer or tablet and other Bluetooth-enabled devices like a mouse, keyboard, and headphones.

It can generally handle being paired with many Bluetooth devices at once.



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