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Do you Know the Principle of Bluetooth Transmission?

Aug. 28, 2020

Sports Wireless Earphone is now loved by people of all ages. All kinds of Exquisite Wireless Earphoneuse Bluetooth technology. Now let ’s take a look at related Bluetooth technologies. Bluetooth technology is an open global specification for wireless data and voice communications. It is a special short-range wireless technology connection based on a low-cost, short-range wireless connection that establishes a communication environment for fixed and mobile devices. The role of Bluetooth Bluetooth enables some of today's portable mobile devices and computer devices to connect to the Internet without cables and to access the Internet wirelessly.

The principle of Bluetooth transmission is this. Master-slave relationship: Bluetooth technology stipulates that when performing Bluetooth communication between each pair of devices, one must be the master role and the other is the slave role in order to communicate. When communicating, the master must perform a search and initiate pairing. After that, both parties can send and receive data. In theory, one Bluetooth master device can communicate with 7 Bluetooth slave devices at the same time. A device with a Bluetooth communication function can switch between two roles. It usually works in slave mode and waits for other master devices to connect. When necessary, it switches to master mode and initiates calls to other devices. When a Bluetooth device initiates a call in the main mode, it needs to know the other party's Bluetooth address, pairing password, and other information. After pairing is complete, the call can be initiated directly.

Sports Wireless Earphone

Sports Wireless Earphone

Call process. When a Bluetooth master device initiates a call, the first step is to find out which Bluetooth devices are around to be found. After the master device finds the slave Bluetooth device, pair it with the slave Bluetooth device. At this time, you need to enter the PIN code of the slave device, and some devices do not need to enter the PIN code. After the pairing is completed, the slave Bluetooth device will record the trust information of the master device. At this time, the master can initiate a call to the slave device. The paired device no longer needs to be re-paired on the next call. A paired device, as a slave Bluetooth headset, can also initiate a chain establishment request, but a Bluetooth module for data communication generally does not initiate a call. After the link is established successfully, two-way data or voice communication can be performed between the master and slave ends. In the communication state, both the master and slave devices can initiate a link disconnection and disconnect the Bluetooth link.

data transmission. In Bluetooth data transmission applications, one-to-one serial data communication is one of the most common applications. Bluetooth devices set the pairing information between the two Bluetooth devices in advance before leaving the factory. Addresses, etc., devices at both ends will automatically establish a chain and transparent serial port transmission without the need for peripheral circuit intervention.

In one-to-one applications, the slave device can be set to two types. One is the silent state, that is, it can only communicate with the designated master and not be searched by other Bluetooth devices. Can also be found by other Bluetooth devices.

How do I connect a Bluetooth headset to a mobile phone? First press and hold the Bluetooth headset power-on button for about ten seconds until you see the signal light blink, then turn on the phone's Bluetooth. Then turn on Bluetooth, search for nearby Bluetooth devices, find the Bluetooth name of the Bluetooth headset, click Connect, and you can use it after the connection is successful. Please contact us if you want to Customized Sports Wireless Earphone.

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