Ebyte E90-DTU User Manual page 27

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parameter
Equipment name
（Client ID）
username
（Device name）
password
（Device secret）
PrductKey
Post topic
Subscribe
topics
【Note】
Dynamically generated topic addresses can use the same parameters to achieve the effect of data return, for
example: OneNET publishes and subscribes to the same topic address: 123456, which can achieve data return;
Due to the adjustment of the MQTT platform (Baidu Cloud, Huawei Cloud, OneNET), the connection cannot be
made after filling in the parameters, and the platform rules shall prevail;
Take the standard MQTT3.1.1 parameter filling as an example, as shown below:
(2), Alibaba Cloud
Supports the use of Alibaba Cloud's "Three Elements" to directly connect to the server, and obtains the "Three
Elements" required to connect to Alibaba Cloud, as shown in the figure (only for demonstration cases, users need to
use self-built parameters to connect):
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standard
Baidu cloud
MQTT3.3.1
Client ID DeviceKey
IoTCoreId/DeviceKe
User Name
y
Password DeviceSecret
Alibaba Cloud parameters, optional
MQTT Publish topic address (dynamically generated by
OneNET）
to MQTT Subscription topic address (dynamically generated by
OneNET)
E90-DTU(433C30E)-V2.0 User Manual
OneNET
equipment ID
product ID
Equipment name
/User Password
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