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Home > How To > What is Bluetooth 4.2?
What is Bluetooth 4.2?

What is Bluetooth 4.2?

By  August Kling 2020-01-03 613 25

Bluetooth 4.2: connection technology without WiFi

Bluetooth and WiFi are the most well-known wireless technologies. There is no doubt that WiFi plays an important role in wireless connection technology. once there is a network failure, all intelligent devices will not be able to use. At this time, the technology that does not rely on wireless network becomes very important. Bluetooth 4.2, a smarter, safer and faster Bluetooth technology, was born.


The biggest features of Bluetooth 4.2 standard are: faster data transmission, more powerful privacy function, and Ipv6 network support.


Under this standard, without the user's permission, the Bluetooth signal will not be able to connect and track the user's equipment, which greatly protects the user's privacy. It can be safely used on wearable devices without fear of being tracked.


The Bluetooth 4.2 standard increases data transmission speed by 2.5 times, mainly due to a 10-fold increase in the capacity of Bluetooth intelligent (Bluetooth Smart) packets and a reduction in the transmission error rate, because a larger amount of data transmission not only improves performance, but also reduces battery loss. In a nutshell, the device can work more easily and the battery will have a longer standby time.


The biggest improvement of the new standard is that it supports 6LoWPAN, and Bluetooth 4.2 devices can access the Internet directly through IPv6 and 6LoWPAN. This technology allows multiple Bluetooth devices to access the Internet or local area network through a terminal, so that most smart homes can abandon the relatively complex WiFi connection and switch to Bluetooth transmission, making the interconnection between personal sensors and homes more convenient and fast.


To make a brief introduction to Blutooth and Blutooth Smart, Bluetooth Smart is actually Bluetooth 4.0, while the Bluetooth Technology Alliance has played down the concept of X.0, emphasizing that the reason for Bluetooth Smart, is that "X.0 is meant for geeks that, Bluetooth SIG wants ordinary consumers to understand."

In the field of smart home, Bluetooth devices using Bultooth Smart technology can realize the "dialogue" between devices without network. Solved, suddenly cut off the network without WiFi, smart home devices will still be able to continue to work.


It has always been believed that Bluetooth and WiFi are enemies in the field of short-distance wireless communications. Corey, on the other hand, believes that the two are complementary. Compared with WiFi, Bluetooth is more convenient, lower energy consumption and easier to obtain, WiFi can be used as a supplement to Bluetooth. In fact, at present, wireless transmission technology has a rapid growth, of which Bluetooth is the fastest growing wireless transmission technology, and can complement each other with WiFi.


The Bluetooth 4.2 standard has been available for more than a month and is expected to be widely promoted in 2015. According to the Bluetooth Technology Alliance, the launch of practical application products needs to be determined according to the partner's end products. It is expected that terminal products using Bluetooth 4.2 standard will be launched one after another in the second half of 2015. Among them, the Bluetooth network processor of French Semiconductor, the IPv6 Bluetooth intelligent coffee maker of Nordic, the smart guitar effector / smart couple bracelet of starting line technology, the B-TAG of Coolstone technology, all kinds of smart home products of Bide Electronics and a variety of smart bracelets of Baidu. The display of a variety of products, people can not wait to experience the new Bluetooth standard as soon as possible, I believe that it will not be long before Bluetooth 4.2 devices will bring more convenience to our lives.



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