Chengdu Ebyte Electronic Technology Co.,Ltd.
E18-DTU(Z27-ETH) User Manual
Copyright ©2023
，成都亿佰特电子科技有限公司
Data return test
：
3.4.6 MQTT client mode
The serial device server supports fast access to standard MQTT3.1 protocol servers (OneNET, Baidu Cloud, HUAWEI CLOUD, user-
built server types) and Alibaba Cloud servers, supports quality of service level configuration (Qos 0, Qos 1), supports ultra-long text
configuration, and facilitates better access to network service operators (server address, three elements, subscription and publishing addresses
support up to 128 character configuration)
。
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