已经更新固件。WIFI连接成功。使用教程里的《物联网应用(上)》课程,
根据实际更改了产品ID,设备ID和APIkey,并确认它们是正确的。但是在oneNET官网上掌控板始终离线状态。
报错信息如下:
Traceback (most recent call last):
File "main.py", line 82, in <module>
File "main.py", line 44, in OneNET_set
up
File "umqtt/simple.py", line 99, in co
nnect
MQTTException: 4
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