Waveshare RS485 TO ETH Manual page 29

485 TO ETH (B) User Manual
Click "Firmware and Configuration", the configuration download and design dialog box
will pop up:
Here select "Web Directory Download", and then select an empty directory, such as the
MQTTHTTPD directory, and then click "Clear All" to clear the previous design (note that if the
previous design was designed according to JSON, do not clear all, otherwise the previous
design will be cleared. JSON design). Then click MQTT configuration.
Figure 31 MQTT configuration 1
Figure 32 MQTT configuration 2
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