Ardupilot has recently added Ethernet and TCP/IP support, including the ability to run an HTTP server as part of a LUA script on the flight controller.
In order to reach the HTTP server from the SIYI MK32E ground station, I soldered a connecting cable between the 4-pin Ethernet connector of the Holybro Pixhawk 6x and one of the two 8-pin Ethernet connectors of the SIYI Airstation.
They are connected 1:1, i.e. RX- to RX-, TX- to TX- etc. Connection diagram:
With the new Arduplane NET parameters, the Arduplane server is assigned the fixed address 192.168.144:26, DHCP is switched off and one of the port types is set to TCP server (details in the link above).
Using the Chrome browser on the SIYI MK32E, call up the HTTP server at 192.168.144.26:8080.
Together with server-side lua-scripting, there are unimagined possibilities for all kinds of applications that are not time-critical. It would be sufficient to simply make customised server pages available.