Can’t make MAVSDK commuincate with PX4 SITL in Airsim (Unreal Engine)

[NikitaBlck]

I am running PX4 SITL in WSL on Windows and using it with AirSim to simulate a drone in Unreal Engine. When I am running a script with MAVSDK library, it says that I need to install MAVSDK server separately, but this server, when running, can’t connect to PX4 SITL, and there is no clear guide on what kind of IP address and port is needed for the MAVSDK server (WSL IP or something else, TCP or UDP). Please let me know if anyone has had this problem or a similar situation.

[julianoes]

I don't know what AirSim does within WSL but usually PX4 SITL sends MAVLink on UDP port 14550 (for QGC) and 14540 (for things like MAVSDK) to localhost. So, if MAVSDK was running on the same host, it could just listen on udpin://0.0.0.0:14540.

If things have to go through some networking bridges, then you will have to make PX4 SITL send traffic to these using the -t argument (also see https://docs.px4.io/main/en/simulation/#enable-streaming-to-specific-address).

[ne246]

@julianoes this is actually the exact issue im running into, can I just add on to this?

[ne246]

This was recommended from gpt, I tried debugging through there but it has a hard time, it understands the problem but cannnot fix.
I think that this is the main issue, how do I go about this, it seems that px4 only wants to connect through tcp.

[julianoes]

Read what I wrote in #764 (comment).

[ne246]

@NikitaBlck DId you fix this issue? I cant seem to fix it.