Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Tello EDU not returning ok/error for "emergency" command #85

Open
anoop4 opened this issue Aug 3, 2022 · 5 comments
Open

Tello EDU not returning ok/error for "emergency" command #85

anoop4 opened this issue Aug 3, 2022 · 5 comments

Comments

@anoop4
Copy link

anoop4 commented Aug 3, 2022

The Tello SDK documentation mentions that the Tello EDU returns an "ok/error" response for the "emergency" command.
https://dl-cdn.ryzerobotics.com/downloads/Tello/Tello%20SDK%202.0%20User%20Guide.pdf

However, I see that my EDU drone doesn't return an "ok" response even though it emergency lands appropriately.

Is this a known issue?

@dji-dev
Copy link

dji-dev commented Aug 3, 2022

Agent comment from Hummels Lei in Zendesk ticket #68652:

Hi this is known issue. In fact some commands do not return. Please refer to the actual test results.

°°°

@anoop4
Copy link
Author

anoop4 commented Aug 3, 2022

Hi, I am not able to view the ticket you linked in the previous reply.

Can you let me know which Firmware version did this issue originate?
Also, is there an expected ETA for the fix?

@dji-dev
Copy link

dji-dev commented Aug 3, 2022

Agent comment from Hummels Lei in Zendesk ticket #68652:

This issue always exist. This problem occurs because UDP connections have a high probability of packet loss. And some commands have relatively serious packet loss. I am sorry we have no plan to optimize this problem. Is this problem blocking your development process?

°°°

@anoop4
Copy link
Author

anoop4 commented Aug 3, 2022

Yes, this is a blocking issue for our application.

We rely on the command's return value to determine if a particular command execution was successful. In this case, the emergency command (and possibly other commands) doesn't return "ok"/"error" and there is no way to determine if the emergency land was successful.
As a result, we are not able to give appropriate feedback to the user from the application.

The situation is even critical for the basic movement commands (up, down, left, right, forward, back) since there is no way to programmatically determine if the command was successful. The only way t validate this is by visual inspection.

We have started seeing this issue only with the latest firmware update.

@anoop4
Copy link
Author

anoop4 commented Aug 9, 2022

Is there any update on this issue?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants