What Are The New Changes Of Bluetooth 5.2?

After years of evolution, Bluetooth technology has gradually developed from version 1.0 to the latest version 5.3, and in the current market, BLE5.2 is undoubtedly the most popular version.This article will reveal the core features of BLE5.2 and show the latest breakthroughs in Bluetooth technology.

As the latest version of Bluetooth technology, BLE5.2 has achieved significant improvements in many aspects.First of all, its transmission speed has accelerated significantly compared to the early version, providing a more efficient and smoother experience for data transmission between devices.In addition, BLE5.2 has also made breakthroughs in connecting stability, anti -interference ability, and power consumption control.The latest connection mechanism makes the connection between devices more stable and reduces the connection interrupt or drop.At the same time, the newly introduced signal processing technology has further improved the transmission quality and stability of the Bluetooth signal.In addition, through more intelligent dormant and awakening mechanisms and more efficient data processing methods, BLE5.2 successfully reduced power consumption to a lower level, effectively extending the battery life of the equipment.

BLE5.2 also optimized the application scenario of Bluetooth equipment.For example, in the field of Internet of Things, connections and data transmission between devices often need to be more stable and efficient.The introduction of BLE5.2 provides more optimized solutions for such devices.At the same time, with the rapid development of smart homes, medical care and other fields, the improvement of BLE5.2 in terms of connection stability, anti -interference ability and transmission speed also brings more possibilities to these fields.

The ZM8258P designed by Guangzhou Zhiyuan Electronic Co., Ltd. is a domestic BLE5.2 Lord and Condor Bluetooth module.This module supports 8 data transmission channels. ZUI supports 4 main 4 main connections at the same time, and is equipped with data transparency and OTA upgrades.With low cost, low power consumption and small size, this module has attracted much attention in the market.

In BLE5.2, an important improvement is to enhance the attribute protocol (EATT).This improvement optimizes the sequential transaction model, so that the stack can handle concurrent transactions.Through independent configuration ATT MTU and L2CAP MTU, the EATT protocol supports concurrent transactions on different L2CAP channels.This change brings higher stability and efficiency to Bluetooth equipment.

                                                                                                 Figure 2   eatt   transaction processing model (right)

In addition, BLE5.2 has also been updated with power consumption control.By monitoring the receiving signal strength RSSI, the transmitter can dynamically adjust the launch power.This mechanism allows the device to control the transmitting power according to the RSSI value at different distances, thereby maintaining the receiving sensitivity within a ZUI range to achieve more accurate power consumption control.

                      & n bsp;                                      & n bsp;                                      & n bsp;                                   Radio wavePath loss

It is worth mentioning that BLE5.2 introduced the concept of synchronous channel (ISOC) for the first time.In order to support the realization of the next -generation Bluetooth Audio based on low power consumption, BLE5.2 defines synchronous audio transmission channels in the connection mode and synchronous audio transmission channels in the broadcast mode.These synchronous channels support the connection and non -connection mode. The content includes: synchronous audio transmission channel/multi -channel audio stream in the connection mode, and the synchronous audio transmission channel/broadcast mode shared audio stream under the broadcast mode.These features bring more possibilities to Bluetooth audio equipment and bring higher quality audio experiences to consumers.

Figure 4   Connect the synchronization channel and broadcast synchronization channel

In summary, the BLE5.2 version of Bluetooth technology has achieved major breakthroughs in many aspects.From increasing transmission speed and stability, enhancing anti -interference capabilities to optimizing power consumption control and introducing synchronous channels, the successful update of this version brings a more efficient, stable and intelligent experience to Bluetooth equipment.With the continuous development and improvement of Bluetooth technology, we have reason to believe that there will be more exciting application scenarios in the future waiting for us to explore and develop.