结合MQTT的报错需要处理timer等问题
代码支持掉线重连，支持关闭路由器后自动重连
# 导入Pin模块
from machine import Pin, Timer
import utime
import network
from simple import MQTTClient
import random
# 路由器WIFI账号和密码
WIFI_SSID = ""
WIFI_PASSWORD = ""
MQTT_SERVER = ""
MQTT_TOPIC = ""
MQTT_CLIENTID = "test_" + str(random.randrange(1000, 10000))
def connect_wifi(WIFI_SSID, WIFI_PASSWORD):
global wlan
wlan = network.WLAN(network.STA_IF) # STA模式
if not wlan.isconnected():
print("Connecting to network..."发布者：admin，转转请注明出处：http://www.yc00.com/web/1754865958a5209930.html
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