Waveshare RS485 TO ETH Manual page 30

485 TO ETH (B) User Manual
The configuration instructions here are as follows:
1 Server domain name or IP: here is the IP of the MQTT server, the maximum length is 30
characters.
2 Username: is the username of the MQTT server.
3 Password: is the login password of this user.
4 Client ID: It is the client ID of MQTT.
5 Subscribe to the topic: It is the topic subscribed by this device. When other devices
publish this topic, the server will send it to this device. If you are only publishing, generally
you do not need to fill in this field.
6 Publish topic: The topic of the data sent to the server when the device serial port is
converted to MQTT.
7 MQTT advanced parameters: used to configure advanced parameters.
8 Save MQTT settings: After designing, click this button to save, and then click the
"download button" in the web page download directory to download.
Now click "MQTT advanced parameters" (generally no need to configure advanced
parameters):
Figure 33 MQTT configuration 3
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