There are only four, so which one would you want to use?
They are all pretty tightly bound to the functionality they provide so I’d doubt there is an AT command to set the port - mostly the AT interface will be for setting keys - but you can review them all on the docs site.
The best bet for a port change would be the WisNode Sense as that has a RAK811 on it and can be reprogrammed.
What is the requirement that needs a port change - the uplink would be tied to the device - is it connected to payload formatters?
Hi @robertlie , If you are looking to change the fport of RAK7205/RAK5205, that is possible but you need to recompile the source code via RUI. You can’t change it via AT command.