Decoding MavLink Packets

HereLink
1

Hello,

I’m using Java on Android Studio, and creating an application on the herelink controller unit which is connected to the orange cube pilot.

I’ve managed to open up a UDP connection to port 14552 in the local host and i’m currently just listening in to all the data coming through, converting it to hexadecimal and saving it to a txt file.

However, my question is, how do i go about decoding the mavlink hexadecimal messages? i’ve already read throught this site Messages (common) · MAVLink Developer Guide but as someone who has never worked with hexadecimcals its a bit confusing.

So for example, im getting a message as such:

Screen Shot 2021-08-06 at 1.44.23 pm
Screen Shot 2021-08-06 at 1.44.23 pm2880×1744 325 KB

Firstly, are those 0s at the end are just empty bytes that can be ignored?
So now that i only have a short hexadecimal like:
FE1CDE01011EAC2395002D9183BCBE9A793BB7402C40C096A7B9085BDEB9F0FAB8B9E508

how do i go about actually reading this? i just need a good understanding or starting point

2

contains

image

3

i think you might need to work though the mavlink documentation a bit more to learn about the packet structure and libraries along with it.

4

how did you get those values thou? am i reading my packets wrong or is this something you decoded from what i had

5

i decoded the hex you had with mission planner.

6

did you use an application to decode it? or did you do it manually

7

the application “mission planner”