如何使用BlueZ获取RSSI？

Question

I'm currently building a small utility to found my phone via Bluetooth and my computer. For this purpose I'm trying to get the RSSI to evaluate the distance between the two devices. How can I get the RSSI with Bluez in C/C++ ?

Is there an hci command for this and if yes, is there a list of HCI commands ?

Thanks.

Answer 1

Is there an utility it can be usefull for you. Try with bluetoothctl if you don't have try to install all the bluez library.

You only have to start a scan an it gives you the rssi from all the devices.

If you need to view the code. You also search in git code https://git.kernel.org/cgit/bluetooth/bluez.git/tree/

Answer 2

怎么样，取自RPi http://www.raspberrypi.org/phpBB3/viewtopic.php?t=57893&p=435887 ？

Answer 3

你可以做hcitool rssi但是应该连接这个设备如果你是bluez然后它为rssi值提供了propertychanged信号你可以检查docs / device-api.txt文件