bluetoothGetBondedDevicesRssi(interval=None) interval (Integer Optional) If interval > 0 , start detect connected devices' Rssi, if interval < 0 , stop detect connected devices' Rssi, if interval == 0 or interval == None , return connected device's address and Rssi, or return unconnected devices' address , you need to call droid.bluetoothGetBondedDevicesRssi(interval) with interval>0 first .