使用BLED112加密狗连接到BLE模块并读/写关贸总协定服务的Python代码.特征

import pygatt

# 定义GATT服务的UUID
GATT_SERVICE_UUID = "0000180f-0000-1000-8000-00805f9b34fb"

# 定义GATT特征的UUID
GATT_CHARACTERISTIC_UUID = "00002a19-0000-1000-8000-00805f9b34fb"

# 初始化BLED112适配器
adapter = pygatt.BGAPIBackend()

# 启动适配器
adapter.start()

# 连接到BLE设备
device = adapter.connect('00:11:22:33:44:55')

# 发现GATT服务
services = device.discover_services()

# 遍历所有服务
for service in services:
    # 判断是否为目标GATT服务
    if service.uuid == GATT_SERVICE_UUID:
        # 获取GATT特征
        characteristics = service.characteristics
        # 遍历所有特征
        for characteristic in characteristics:
            # 判断是否为目标GATT特征
            if characteristic.uuid == GATT_CHARACTERISTIC_UUID:
                # 读取GATT特征的值
                value = device.char_read(characteristic.handle)
                print("Read value:", value)
                # 写入GATT特征的值
                device.char_write(characteristic.handle, bytearray([0x01]))
                print("Write value: 0x01")

# 断开与BLE设备的连接
device.disconnect()

# 停止适配器
adapter.stop()