关于蓝牙MTU的解释COPY的一段_蓝牙mtu有什么用-优快云博客

本文链接：https://blog.youkuaiyun.com/u010860832/article/details/97138916

本文详细介绍了蓝牙5.0规范中关于速度翻倍和范围增大的实现，通过nRF52840芯片进行的演示展示了这些特性。文中描述了一个基于SDK的ATT_MTU通过率示例，用于配置并测试蓝牙低功耗参数对传输性能和范围的影响。内容包括硬件和软件需求、参数调整以及不同设置对性能的影响。

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The new Bluetooth 5 specification promises twice the speed and 4 times the range. Doubling the speed is achieved by increasing the on-air datarate to 2Mbps, while quadrupling the range is achieved by lowering the bitrate to increase the sensitivity of the receiver. We at Nordic have made a demo showing these features with our newest SoftDevice(s) and specifically our newest chip, the nRF52840. It was showcased at CES 2017 in January.

Here is a more in depth description of the demo.

The demo is based on the ATT_MTU throughput example in SDK 13.0.0-1.alpha, which allows you to configure various Bluetooth low energy (BLE) parameters to test out the impact on throughput and range. This demo adds some configurations and can be used either with a display or a terminal program on the computer.

Hardware requirements:

Two nRF52840 Preview Development Kits (PDK) or nRF52832 Development Kits. A combination of the two different kits can also be used. Notice that if the nRF52832 Development Kit is used, the long-range feature will not work as this is only possible with the nRF52840.
A computer with a terminal program. Since the display shield is just an internal prototype and not pub