Accessing real-time MAVLink messages via pymavlink

[EliotBR (Eliot)]

Hi @emir0723, welcome to the forum

To receive messages beyond the defaults you’ll need to either

1. Request them individually, as in my first comment, or
2. Set the relevant stream group rate (if the message(s) you’re interested in are in one of the available groups)

@emir0723

Edit: I think it somehow related to my first connection. If I open my laptop/raspberry and directly try to print the mavlink messages I’m only getting the heartbeat. But first if I give some order via that mavlink (such as calling the parameters in mission planner, or arming the motors), I can receive the all mavlink messages.

As mentioned in my first comment, Control Station Software (like QGroundControl and Mission Planner) will request particular message rates when they connect to the vehicle, so if you open one of those softwares before running your own program then there will be additional messages being streamed because they’ve been requested.

@emir0723

Should I put some command before the getting the parameters??

Parameters are not accessed via standard MAVLink streams - they use the Parameter Protocol, which we have a couple of basic pymavlink examples for here.