蓝牙LE供电的设备能否发现经典的蓝牙设备，反之亦然? [英] Can a Bluetooth LE powered device discover a classic Bluetooth device and vice-versa?

问题描述

我想知道蓝牙4.0(低能耗)手机能否发现经典的蓝牙设备(3.0及更低版本)，反之亦然.我唯一感兴趣的就是发现友好名称".

据我所知，这篇文章的回复是，蓝牙4.0可以发现经典的蓝牙设备，但不能反过来.那么我的后续问题是，处于LE模式的Bluetooth 4.0设备能否发现经典的Bluetooth设备?

解决方案

答案取决于您是指蓝牙v4.0设备还是BLE设备，两个都不相同.

Bluetooth v4.0 =经典蓝牙+蓝牙高速+蓝牙低功耗

因此，低功耗蓝牙只是蓝牙v4.0的一个子集.如果您的问题是关于蓝牙v4.0手机(通常不是BLE)，那么答案是是的，理论上，蓝牙v4.0手机可以发现蓝牙v3.0设备及更低版本的蓝牙.

I'm wondering if Bluetooth 4.0 (low-energy) mobile phones could discover classic Bluetooth devices (3.0 and lower), and vice-versa. All I am interested in is discovering the "friendly names".

EDIT: As I have understood the replies of this post, Bluetooth 4.0 can discover classic Bluetooth devices but not the other way around. Then my follow-up question is, can a Bluetooth 4.0 device in LE mode discover classic Bluetooth devices?

解决方案

The answer depends on if you mean Bluetooth v4.0 device, or BLE device, the two are not the same.

Bluetooth v4.0 = Classic Bluetooth + Bluetooth High Speed + Bluetooth Low Energy

Therefore, Bluetooth Low Energy is only a subset of Bluetooth v4.0. If your question is regarding Bluetooth v4.0 phones (generally phones are not BLE only), then the answer is Yes, Bluetooth v4.0 mobile phones can theoretically discover Bluetooth v3.0 devices and lower.

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