阿里云三元组使用micropython转mqtt连接参数

以下是使用MicroPython连接到MQTT的示例代码，其中包括阿里云三元组的连接参数：

import network
from umqtt.simple import MQTTClient

# 连接参数
broker = "your_broker.aliyuncs.com"
port = 1883
username = "your_device_id&your_product_key"
password = "your_device_secret"
client_id = "your_client_id"

# 连接WiFi
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect("your_wifi_ssid", "your_wifi_password")
while not sta_if.isconnected():
    pass

# 连接MQTT
client = MQTTClient(client_id, broker, port, username, password)
client.connect()

# 发布消息
topic = "your_topic"
message = "Hello, World!"
client.publish(topic, message)

# 订阅消息
def sub_callback(topic, msg):
    print((topic, msg))

client.set_callback(sub_callback)
client.subscribe(topic)

# 循环等待消息
while True:
    client.wait_msg()

请将示例代码中的“your_broker.aliyuncs.com”、“your_device_id&your_product_key”、“your_device_secret”、“your_client_id”、“your_wifi_ssid”和“your_wifi_password”替换为您的实际值。