使用 DBus 和 Bluez 向蓝牙设备写入数据

Question

我需要使用 Python dbus 库通过 DBus 和 Bluez 将数据写入蓝牙设备。

But only know how to connect and disconnect device:

import dbus

system_bus = dbus.SystemBus()
device = system_bus.get_object('org.bluez','/org/bluez/hci0/dev_FF_FF_99_96_64_60')
object = dbus.Interface(device, dbus_interface='org.bluez.Device1')
object.Connect()

object.Disconnect()

That's method description from DFeet app:

<method name="WriteValue">
    <arg name="value" type="ay" direction="in"/>
    <arg name="options" type="a{sv}" direction="in"/>
</method>

UPDATE: Added code which write converted bytes

import dbus
import binascii

system_bus = dbus.SystemBus()
device = system_bus.get_object('org.bluez','/org/bluez/hci0/dev_FF_FF_99_96_64_60')
object = dbus.Interface(device, dbus_interface='org.bluez.Device1')
object.Connect()

device_2 = system_bus.get_object('org.bluez','/org/bluez/hci0/dev_FF_FF_99_96_64_60/service000c/char000d')
object_2 = dbus.Interface(device_2, dbus_interface='org.bluez.GattCharacteristic1')

#bytes = dbus.ByteArray(binascii.unhexlify("025a06000000"))
bytes = binascii.unhexlify("025a06000000")

object_2.WriteValue(bytes,{})

object.Disconnect()

Answer 1

在使用 BtleJuice Framework 进行一些测试后可以确认这足以发送字节：

bytes = binascii.unhexlify("025a06000000")
object_2.WriteValue(bytes,{})

在这样描述的方法中：

<method name="WriteValue">
    <arg name="value" type="ay" direction="in"/>
    <arg name="options" type="a{sv}" direction="in"/>
</method>

至少它对我有用。

使用 DBus 和 Bluez 向蓝牙设备写入数据

Write data to Bluetooth device with DBus and Bluez

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