Ctello state

[AnaRhisT94]

Not getting tello's state,
I'm just getting the following messages and that's it:

[carlospzlz]

Could you enable debug logging?

env SPDLOG_LEVEL=debug ./ctello_state

[carlospzlz]

Hi @AnaRhisT94, any luck with this?

[AnaRhisT94]

When running the quick-starter guide I'm getting:

[10/30/21 13:20:34] [ctello] [info] Finding Tello ...
[10/30/21 13:20:34] [ctello] [debug] 127.0.0.1:9000 >>>> 7 bytes >>>> 192.168.10.1:8889: command
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 <<<< 2 bytes <<<< 192.168.10.1:8889: ok
[10/30/21 13:20:35] [ctello] [info] Entered SDK mode
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 >>>> 3 bytes >>>> 192.168.10.1:8889: sn?
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 <<<< 20 bytes <<<< 192.168.10.1:8889: unknown command: sn?
[10/30/21 13:20:35] [ctello] [info] Serial Number: unknown command: sn?
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 >>>> 4 bytes >>>> 192.168.10.1:8889: sdk?
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 <<<< 21 bytes <<<< 192.168.10.1:8889: unknown command: sdk?
[10/30/21 13:20:35] [ctello] [info] Tello SDK:     unknown command: sdk?
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 >>>> 5 bytes >>>> 192.168.10.1:8889: wifi?
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 <<<< 4 bytes <<<< 192.168.10.1:8889: 90
[10/30/21 13:20:35] [ctello] [info] Wi-Fi Signal:  90
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 >>>> 8 bytes >>>> 192.168.10.1:8889: battery?
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 <<<< 4 bytes <<<< 192.168.10.1:8889: 79
[10/30/21 13:20:35] [ctello] [info] Battery:       79
[10/30/21 13:20:35] [ctello] [debug] 127.0.0.1:9000 >>>> 7 bytes >>>> 192.168.10.1:8889: takeoff
[10/30/21 13:20:41] [ctello] [debug] 127.0.0.1:9000 <<<< 2 bytes <<<< 192.168.10.1:8889: ok
[10/30/21 13:20:41] [ctello] [debug] 127.0.0.1:9000 >>>> 6 bytes >>>> 192.168.10.1:8889: flip b
[10/30/21 13:20:45] [ctello] [debug] 127.0.0.1:9000 <<<< 2 bytes <<<< 192.168.10.1:8889: ok
[10/30/21 13:20:45] [ctello] [debug] 127.0.0.1:9000 >>>> 4 bytes >>>> 192.168.10.1:8889: land
[10/30/21 13:20:49] [ctello] [debug] 127.0.0.1:9000 <<<< 2 bytes <<<< 192.168.10.1:8889: ok

And the drone flies and flips, but I'm interested in getting the state of the drone (acceleration, barometer, etc..)

[carlospzlz]

That's quite strange, it seems that some of the commands are not supported. Do you know what's your firmware's version?
Could you try updating it?

[lev-droid]

I get the same issue using the latest firmware. I also do not get any opencv window appearing when I use ctello-stream, but I suspect that has something to do with my usage of the wsl.

[queharris]

Any luck with this by any chance?

[carlospzlz]

I'll have a look at this soon.

[carlospzlz]

I've just done some testing and investigation for this.

---

Tello EDU model (SDK 2.0 - firmware 2.05.01.17)

This was the Tello that this project was originally developped and tested for

• Both commands sn? and sdk? seem to work fine
• ctello-state seems to work fine

---

Original Tello model (SDK 1.3 - firmware 1.04.91.01)

• sn? and sdk? are unknown commands
• However, ctello-state seems to work fine (slightly different fields in the state)

---

Tello Talent model (SDK 3.0)

Not tested

---

Here you can find the manuals for all the different versions of the SDKs:

• SDK 1.3
• SDK 2.0
• SDK 3.0

Does this help?

If you are finding any issues that don't align with what cited here, could you confirm what model of the aircraft you have and firmware version you are running with, please?