dji-sdk / tello-python

This is a collection of python modules that interact with the Ryze Tello drone.

Tello-Python

Introduction

This is a collection of python-based sample code that interact with the Ryze Tello drone.

Project Description

This toolkit contains three sample programs based on tello sdk and python2.7,including Single_Tello_Test, Tello_Video, and Tello_Video (With_Pose_Recognition). There is also a program file named tello_state.py.

• Single_Tello_Test

In Single_Tello_Test,You can design a series of command combinations by writing a txt script to let tello execute a series of actions you have designed. This program can also be used as a command set test tool for tello.

• Tello_Video

In Tello_Video，You can receive the video stream data from tello, decode the video through the h264 decoding library, and display it on a GUI interface based on Tkinter and PIL. In addition, it also supports a control panel that can operate tello. This sample code provides an example of receiving and processing and getting the correct video data. The source code of the h264 decoding library is also provided in the package, which can be used for your reference.

• Tello_Video(With_Pose_Recognition)

Tello_Video_With_Pose_Recognition is an application version modified from Tello_Video.It uses the decoded video data，and everytime extract a single frame image for pose recognition operation , and binds the specific posture and aircraft control commands to realize the pose control of Tello.This code is mainly used as an application case for utilizing the decoded video data of tello for image processing.

• Tello_state.py

Tello_state.py can read the various status data of tello, and can be used as a tool to debug and view the status of tello.

Environmental configuration

The sample codes above are based on python2.7.There is no need to install additional third-party libraries for running Single_Tello_Test and tello_state.py.For Tello_Video and Tello_Video (With_Pose_Recognition), you need to install a series of third-party libraries. Therefore, in these two folders, a one-click installation script (based on windows32/64, linux and macos) is provided, which can facilitate you with installing all relevant dependencies.

Specific to the content and description of each package, you can refer to the readme file in the related folder.

Contact Information

If you have any questions about this sample code and the installation, please feel free to contact me. You can communicate with me by sending e-mail to [email protected]. And recently we have committed a new FAQ file under the 'Tello-Python'.If you have any questions,you can firstly refer to it .

About Multi-Tello-Formation

Please refer to github repository https://github.com/TelloSDK/Multi-Tello-Formation. This is a python program that enable the function of multi-tello swarms.

tello-python's Issues

Moving to python3

Python 2.7 will soon be deprecated. Have you considered moving the project to python3?

How to build a UDP control Tello?

Tello_state

I don't know why with me it did but, my tello just broke because of your script. tello_state.py has ripped it. If I start my tello now it immediately turns off again. Help would be nice.

Set speed

Hi! I'm trying to set speed by using command, e.g., send_command('speed 10'), and even though I receive back 'ok', the drone doesn't move (when I use other commands like send_command('up 20') I receive back 'ok' and actually it works). How can I solve this problem?
Moreover, the speed I set along which direction it works? There is the possibility to set only vertical velocity? (Without using go x y z speed command I mean)
Thank you

RuntimeError: cannot open context ("Tello instance has no attribute 'socket'")

python main.py [indeo3 @ 0x1360440] Invalid picture dimensions: 0 x 0! Traceback (most recent call last): File "main.py", line 14, in <module> main() File "main.py", line 7, in main drone = tello.Tello('', 8889) File "/home/martin/Schreibtisch/Tello-Python-master/Tello_Video_With_Pose_Recognition/tello.py", line 25, in __init__ self.decoder = libh264decoder.H264Decoder() RuntimeError: cannot open context Exception AttributeError: "Tello instance has no attribute 'socket'" in <bound method Tello.__del__ of <tello.Tello instance at 0x7f02518d68c0>> ignored
Any idea?

Thanks

Can't get Single_Tello_Test working with a Tello EDU

Hi, I'm unable to get the Single_Tello_Test working with my Tello EDU drone. This works fine with my older original Tello.

Here's the transcript:

clyde@fastr:~/projects/Tello-Python/Single_Tello_Test (master)$ python2 tello_test.py command.txt
sending command: command to 192.168.10.1
from ('192.168.10.1', 8889): ok
Done!!! sent command: command to 192.168.10.1
sending command: takeoff to 192.168.10.1
from ('192.168.10.1', 8889): error
Done!!! sent command: takeoff to 192.168.10.1
delay 5.0
sending command: land to 192.168.10.1
from ('192.168.10.1', 8889): error
Done!!! sent command: land to 192.168.10.1

id: 0
command: command
response: ok
start time: 2018-12-10 15:04:13.334845
end_time: 2018-12-10 15:04:13.382918
duration: 0.048073

id: 1
command: takeoff
response: error
start time: 2018-12-10 15:04:13.383024
end_time: 2018-12-10 15:04:13.433856
duration: 0.050832

id: 2
command: land
response: error
start time: 2018-12-10 15:04:18.439188
end_time: 2018-12-10 15:04:18.482665
duration: 0.043477

Thanks.

framework version 01.04.35.01

What version of the framework are you using?

I use the version 01.04.35.01 and the video does not work by the computer, only by the mobile app

Where is the video protocol documented?

Tello-Python/Tello_Video/tello.py

Line 104 in 5b0b819

if len(res_string) != 1460:

Where is this behavior documented (where a packet length not of 1460 is used to partition a frame)? I'm having trouble finding any official sources which talk about the protocol.

Python 3 (again)

Any thoughts to migrate the Tello-Python code to Python 3.X

I managed to migrate the H264 that it can be used with Python 3.X on my Raspberry PI.
The rest is straightforward. So if someone could help to build the H264 dll or pyc from my fork could be helpful.

See my gist. udp video stream can be encoded by opencv:

https://gist.github.com/f41ardu/b75da46dae383e5c835295600deef604

Could not find a package configuration file provided by "boost_python"

I tried the One-Click installization
but something wrong with cmake.
by the way I use Mac

Tello_Video on Phyton3 is working now.

Feel free to test https://github.com/f41ardu/Tello-Python/tree/master/PY3_Tello_Videop
On an Raspberry PI 3+ I still got multiple video errors but video is working on python 3.5. I assume it may work on 3.x, x >= 5 as well. Please let me know if it is working an I'll request a merge into dji-sdk/Tello-Phyton.

real-time video couldn‘t show properly,but snapshot is working.

error image is following. looking forward your answer.

may be the problem that: Video parsing shows that it is not working properly. related to h264decoder and ffmpeg.

Control UI doesn't show properly, also no video shown, but function work properly.

Working on standart tello (not tello edu) ?

Feature Request: Video Stream with Separate AP

The limitation is mentioned in the FAQ:

Q8:Can Tello EDU transmit video streams externally in station mode (send ap 'ssid' 'password' command for Tello EDU)?

A8:This feature is currently not supported.

Can this feature be added to the Firmware / SDK? It would make the EDU edition much more useful for may lab.

Currently, this limitation removes all benefits of having the EDU edition because I need live video from all drones in the swarm.

custom model

could I add my custom model such as object detection model(for example yolo)?
must these models be developed with caffe?

errors about video transmission on raspberrypi

runned in raspberrypi , python2.7 , environments descriped in ./linux_install.sh were installed.
Getting the following error.

1.error while decoding MB 22 11, bytestream -12
2.non-existing pps 0 referenced
i think there something wrong with ffmpeg and libh264decoder. so how to fix it ?
appreciate for your help

Python 2.7 EOL

Hi,

Python 2.7 has reached its End Of Life. Its at least no longer supported. OpenCV won't install using pip (on a raspberry pi at least) even from the additional repository. Pip3 installs OpenCV (quite rightly) in a Python3 directory on a Raspberry Pi but that's incompatible for this code: "import cv2" fails as its in the wrong directory? I'm not sure if one could build OpenCV to make it compatible with Python2.7?

So, as far as I can see the best solution all round would be to port this code to Python 3 as others are saying please? I don't know how big a job that is though?

Cheers, WW.

how to reduce the delay of video stream

I'am use opencv and imutils library's for capture video(imutils - filevideostream), but get delay on stream. How to fix this?

no responce in the terminal after running main.py in tello video

I have installed all the libraries allowed UDP 11111 port on the firewall, connected to wifi successfully and run the code in terminal on python2.7 but there is no responce....

there is no video from tello edu...

hi all could someone please help me? i use ubuntu 16.04

i open 11111

i copy Tello_Video to my file

install linux_install.sh

use the step from demend to compile h264decoder
(at this time libh264decoder.so show up in main.py file)

I type "python main.py" and it can run and can use keyboard to control

but there is no video GUI show up!! neither the snapshot
(snapshot will show opencv error but there is no error durring senting command in terminal)
(I confirm that there is no wrong with opencv because I install ROS and it will install opencv
and other things I need)

Please tell me how to solve it.....is there something step I forgot?

cannot control with keyboard

Hi guys,
I have installed everything and works as expected. I have video feed and I can make it takeoff and land with the buttons in the UI but I cannot make keyboard buttons works. It simply doesn't recognize them.
What can I do?

Tello_video is not working.

Is not able to include the package h264 even if is it in the correct folder, do you have any suggestion?

File "D:\Tello\Tello-Python-master\Tello-Python-master\Tello_Video\tello.py", line 5, in <module> import libh264decoder ImportError: DLL load failed: The specified module could not be found.

Tello_Video & Tello_Video_With_Pose_Recognition

Hi all,

I was trying out both Tello_Video & Tello_Video_With_Pose_Recognition packages in my Linux - ubuntu 16.04 LTS

At first, I installed Tello_Video with the one click install and it has successfully run, however, when i tries to install and run Tello_VIdeo_With_Pose_Recognition, it shows the following errors, and now it no longer runs again.

I have checked and I moved the 'libh264decoder.so' file into my python's site-packages file & /usr/lib/ , the above move was suggested by the internet. But still getting the error:

spark@spark:~/Downloads/Tello-Python-master/Tello_Video_With_Pose_Recognition$ python main.py

Traceback (most recent call last):
File "main.py", line 1, in
import tello
File "/home/spark/Downloads/Tello-Python-master/Tello_Video_With_Pose_Recognition/tello.py", line 5, in
import libh264decoder
ImportError: libavcodec.so.57: cannot open shared object file: No such file or directory

spark@spark:~/Downloads/Tello-Python-master/Tello_Video_With_Pose_Recognition$ cd ..
spark@spark:~/Downloads/Tello-Python-master$ cd Tello_Video

spark@spark:~/Downloads/Tello-Python-master/Tello_Video$ python main.py

Traceback (most recent call last):
File "main.py", line 1, in
import tello
File "/home/spark/Downloads/Tello-Python-master/Tello_Video/tello.py", line 5, in
import libh264decoder
ImportError: libavcodec.so.57: cannot open shared object file: No such file or directory
spark@spark:~/Downloads/Tello-Python-master/Tello_Video$ `

Any help will be greatly appreciated.

What kind of operation should be performed on libh264decoder under mac environment?

What kind of operation should be performed on libh264decoder under mac environment?
Show libh264decoder model does not exist in pycharm environment
I tried to copy the libh264decoder folder and libh264decoder.so to site-packages, but I still get an error?

boost md5 does not match

TypeError: __init__() should return None, not 'NoneType'

I'm Getting the following error while running main.py

Traceback (most recent call last):
File "main.py", line 14, in
main()
File "main.py", line 7, in main
drone = tello.Tello('', 8889)
File "/Users/vsvsvarma/Desktop/Tello-Python/Tello_Video/tello.py", line 25, in init
self.decoder = libh264decoder.H264Decoder()
TypeError: init() should return None, not 'NoneType'
Exception AttributeError: "Tello instance has no attribute 'socket'" in <bound method Tello.del of <tello.Tello instance at 0x1237d0d88>> ignored

How to get the Tello drone ID?

Is there a command to fetch the drone ID of that is displayed in the Wifi connection list?
For example: "TELLO-XXX"

snapshot not work

Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1541, in call
return self.func(*args)
File "D:\Desenvolvimento\tello\Tello-Python-master\Tello_Video\tello_control_ui.py", line 245, in takeSnapshot
cv2.imwrite(p, cv2.cvtColor(self.frame, cv2.COLOR_RGB2BGR))
error: OpenCV(3.4.3) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:181: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

Error when Snapshot (Ubuntu 18.04)

I follow the steps but failed to take snapshot. I try every method but it don't work. Thx for help.

Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1550, in call
return self.func(*args)
File "/home/sxt17/Desktop/Tello-Python/Tello_Video/tello_control_ui.py", line 245, in takeSnapshot
cv2.imwrite(p, cv2.cvtColor(self.frame, cv2.COLOR_RGB2BGR))
error: OpenCV(4.1.1) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

How do I switch to camera mode to get 5 million pixel images?

Hi, I'm working on a project where I want to use a python script, run from a computer, to command my drone to fly around and take pictures. But the image I got from the video mode is 960*720.
How do I switch to camera mode to get 5 million pixel images?

Please create a development branch for the migration to Python3,

Thanks in advance.

Tello drone shuts down when idle

Hi,

I have my Tello drone sitting idle on my desk and it shuts down after about 4 minutes.
This happens consistently.

Does anyone know if this is a common issue? Is it due to overheating of the downward-facing sensors that are close to the table surface?

AirSim Support with unity or unreal engine python control

so I am having trouble with using airsim with tellopy. I am am getting an error
Traceback (most recent call last):

File "", line 1, in
runfile('C:/Users/fahre/Desktop/dronecontrol.py', wdir='C:/Users/fahre/Desktop')

File "C:\ProgramData\Anaconda2\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 827, in runfile
execfile(filename, namespace)

File "C:\ProgramData\Anaconda2\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 95, in execfile
exec(compile(scripttext, filename, 'exec'), glob, loc)

File "C:/Users/fahre/Desktop/dronecontrol.py", line 73, in
tellodrone = tellopy.Tello()

File "C:\ProgramData\Anaconda2\lib\site-packages\tellopy_internal\tello.py", line 91, in init
self.sock.bind(('', self.port))

File "C:\ProgramData\Anaconda2\lib\socket.py", line 228, in meth
return getattr(self._sock,name)(*args)

error: [Errno 10048] Only one usage of each socket address (protocol/network address/port) is normally permitted

install.bat file keeps crashing on win-64

as mentioned earlier, install.bat and install_manual.bat closes the cmd prompt after admin rights. I have manually tried installing all dependencies, but I need h264decoder to be built.
Any suggestions?

Tello_Video main.py does not render video feed MacOS High Sierra

Hi there, I have installed the project successfully using the ./install.sh script.

files in Tello_Video:

LICENSE.md		__pycache__		h264decoder		install			main.py			tello.pyc		tello_control_ui.pyc
README.md		get-pip.py		img			libh264decoder.so	tello.py		tello_control_ui.py	venv

python main.py 
sent: command
sent: streamon

when I run main.py the control window opens fine but no video feed appears.

Tello SDK cannot go move after take off

Hi, the I am using this sdk for my newly bought tello. The video feed is fine, the take off and landing command works, and the rotate cw and ccw command works "Response: ok". However, when I send the any other commands (forward, backward, left, right etc) the command always return a "Response: Out of Range", and consequently my Tello can only take off, rotate on the spot, and land....

But it shouldn't be a connection issue, as it can recognize the rotate, take off and landing perfectly.

And the drone works perfectly well on my tello app in all aspects (if this info helps)

A example of the command from the tello.py file that does not work is this

def move_backward(self, distance):
    """Moves backward for a distance.

    See comments for Tello.move().

    Args:
        distance (int): Distance to move.

    Returns:
        str: Response from Tello, 'OK' or 'FALSE'.

    """

    return self.move('back', distance)

I didnt change the code, so it is as it originally was.

Anyone has any idea whats the issue :( its been bugging me. Any help will be appreciated!

no module found libh264decoder

gz#25506

I am having a similar issue as others with the h264decoder

I am trying to use the tello drones in a school environment and can not get video working. We are using python 3.7 in the anaconda. Could this be part of the problem? Is there an update for later versions on python?

Setting up in installation

I have followed the following steps:

Mac

Make sure you have the latest Xcode command line tools installed. If not, you might need to update your OS X and XCode to the latest version in order to compile the h264 decoder module
Go to the "install\Mac" folder folder in command line, run
chmod a+x ./mac_install.sh
./mac_install.sh

However, my installation said:

Configuring incomplete, errors occurred!
See also ''User/hkpc/downloads/Tello-Python-master/Tello_Video/h264decoder/build/CMakeFiles/CMakeOutput.log''.
make: *** No targets specified and no makefile found. Stop.
cp: libh264decoder.so: No such file or directory
Compilation and Installation Done!

Can I know what am I missing and how to fix this?

cv::dnn::ReadProtoFromTextFile

Hi, I got this error to run .\Tello_Video_With_Pose_Recognition\main.py after running the .\Tello_Video_With_Pose_Recognition\tello_pose.py

cv2.error: OpenCV(3.4.2) C:\projects\opencv-python\opencv\modules\dnn\src\caffe\caffe_io.cpp:1121: error: (-2:Unspecified error) FAILED: fs.is_open(). Can't open "model/pose/mpi/pose_iter_160000.caffemodel" in function 'cv::dnn::ReadProtoFromTextFile'

Can you help me?

Pose recognition doesn't work

Hi!
I'm attempting to use pose recognition, but when i run the main project and i switch on the pose recognition, the joints' skeleton of my body doesn't appear. I've downloaded the model and followed instructions written in the readme. Any solution?

Does this package have a ROS version?

Can Tello be developed with ROS?
Thank you!

Tello_Video & Tello_Video_With_Pose_Recognition #41

Hi all,

I was trying out both Tello_Video & Tello_Video_With_Pose_Recognition packages in my Mac Os catalina
At first, I installed Tello_Video with the one click install and it not work. still getting the error:

CMake Error at /usr/local/lib/cmake/Boost-1.71.0/BoostConfig.cmake:117 (find_package):
Could not find a package configuration file provided by "boost_python"
(requested version 1.71.0) with any of the following names:

boost_pythonConfig.cmake
boost_python-config.cmake

Add the installation prefix of "boost_python" to CMAKE_PREFIX_PATH or set
"boost_python_DIR" to a directory containing one of the above files. If
"boost_python" provides a separate development package or SDK, be sure it
has been installed.
Call Stack (most recent call first):
/usr/local/lib/cmake/Boost-1.71.0/BoostConfig.cmake:182 (boost_find_component)
/usr/local/Cellar/cmake/3.15.4/share/cmake/Modules/FindBoost.cmake:443 (find_package)
CMakeLists.txt:12 (find_package)

-- Configuring incomplete, errors occurred!
See also "/Tello_Video/h264decoder/build/CMakeFiles/CMakeOutput.log".

Any help will be greatly appreciated.

How to get video with separate AP

Hello,

I am trying to use this SDK with a Tello EDU connected to a separate AP, but the video socket bound to port 1111 never seems to get any data.

The receive socket bound to 8889 is able to get responses, and I can send commands without issue.

This is my code:

import time
from tello import Tello

drone = Tello('', 8889, tello_ip='192.168.2.108')

drone.send_command('battery?')
time.sleep(0.5)
print(drone.get_response()) # 72

frame = None
while frame is None:
    frame = drone.read()
    print(frame) # None
    time.sleep(0.5)
    

print(frame)

drone.read() always returns None when connected to the external AP, but it works fine and returns data when the Tello is acting as its own hotspot.

Should video feed to work with a separate AP? Is it a limitation of the SDK, or a configuration error on my end?

Edit:
My question is in the FAQ:

Q8:Can Tello EDU transmit video streams externally in station mode (send ap 'ssid' 'password' command for Tello EDU)?

A8:This feature is currently not supported.

Python 3

Is their a python 3 SDK that can be downloaded for the Tello Drone?

Does this API work for 2018 tello drone?

Does it work for all dji tello drones or just for the tello EDU drone?

Thank you.

Error when taking snapshot - `Exception in Tkinter callback`

Error log:

Exception in Tkinter callback
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk/Tkinter.py", line 1536, in __call__
    return self.func(*args)
  File "/Users/jimipedros/git/Tello-Python/Tello_Video/tello_control_ui.py", line 245, in takeSnapshot
    cv2.imwrite(p, cv2.cvtColor(self.frame, cv2.COLOR_RGB2BGR))
error: OpenCV(4.0.0) /Users/travis/build/skvark/opencv-python/opencv/modules/imgproc/src/color.cpp:181: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

how to find the getModels.bat.

Getting the following error. I copied libh264decoder to site-packages in python folder but still the import module error

Has anyone resolved the libh264decoder module not found issue?

Getting the following error. I copied libh264decoder to site-packages in python folder but still the import module error

in <module> import libh264decoder ImportError: DLL load failed: The specified module could not be found.

Originally posted by @sriranjanr in #8 (comment)