Issues using MAVproxy, Unsupported command 176 (changing flight mode)

[ElecHertz]

I am trying to run MAVproxy on the companion computer of my erle copter (the raspberry pi of the erle brain 3) and I keep getting an error when I try to change flight modes. I launch MAVproxy with the following command once I am ssh in the drone:
mavproxy.py --master 127.0.0.1:6001 --out 10.0.0.2:6010

Once mavproxy opens, I try to run the following command:
mode stabilize
but the flight mode does not change and APM planner (connected to 10.0.0.2:6010) says:
[MAV 001:1] FAILURE: Unsupported CMD: 176

I looked up command 176 and it is MAV_CMD_DO_SET_MODE. Any ideas on why this does not work?
Also, I know that I am connected to the drone, becuase if I run
arm throttle
then the drone arms.

[PureRockets]

What mode are you changing to? Some require GPS

[ElecHertz]

I have tried changing into flight modes that require GPS (ie brake RTL) and into those that do not (stabilize and alt hold). Neither work.

[ElecHertz]

@LanderU Could my issue be due to the master connection string I inputed? If I run mavproxy from the ground computer with master connection 10.0.0.2:6000, I can change the flight modes with no problem.

[LanderU]

Hi @ElecHertz,

Could my issue be due to the master connection string I inputed?

Yes, could be the reason. Instead of 127.0.0.1, try with 10.0.0.1:6000.

Regards,

@LanderU

[ElecHertz]

@LanderU I just tried with the master connection as 10.0.0.1:6000, but I got no heartbeat when I ran it on the raspberry pi within the erle brain 3.

[LanderU]

Hi @ElecHertz,

is a required of your project run the GCS inside of the drone?

Regards,

@LanderU

[ElecHertz]

@LanderU Yes, we want to run all the scripts on the drone itself.

[LanderU]

Hi @ElecHertz,

okay, let me check it.

Regards,

@LanderU

[LanderU]

Hi @ElecHertz,

same issue in my brain. I just have asked the question in the developer channel. Waiting for their response.

Regards,

@LanderU

[ElecHertz]

@LanderU Thank you and please fill me in on the results

[LanderU]

Hi @ElecHertz,

you can follow the conversation in the gitter channel as well.

Regards,

@LanderU

[ElecHertz]

@LanderU Any updates?

[LanderU]

Hi @ElecHertz,

the problem, I think, is the current mavlink version in our image. To avoid your problem we need update that version(is not easy).

In the meantime, you can use this mavros topic to change the mode.

Here an example: http://docs.erlerobotics.com/erle_robots/erle_rover/first_steps#moving-the-rover-around

Regards,

@LanderU

[ElecHertz]

@LanderU How would we go about upgrading mavlink?

[LanderU]

Hi @ElecHertz,

you need compile this: https://github.com/mavlink/mavros

Regards,

@LanderU