# Remove program from Tello drone

**URL:** <https://community.droneblocks.io/t/remove-program-from-tello-drone/118>\
**Category:** Uncategorized\
**Created:** [April 2, 2021, 2:31am UTC](https://community.droneblocks.io/t/remove-program-from-tello-drone/118 "2021-04-02T02:31:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![PaceMaker](https://avatars.discourse-cdn.com/v4/letter/p/f08c70/32.png) [@PaceMaker](https://community.droneblocks.io/u/PaceMaker)\
**Post date:** [April 2, 2021, 2:31am UTC](https://community.droneblocks.io/t/remove-program-from-tello-drone/118/1 "2021-04-02T02:31:16Z")

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Hello,

This information occurred before I go involved with DroneBlocks:

I have written many Python programs on my Tello drone.  
I am using my personal computer and the cv2 file.  
One of the programs is named “Take a Picture”.

This program will perform the “tello.streamon()” and use the  
“img = tello.get\_frame\_read().frame” so that the Tello drone  
can take a picture which is called “img”.

After it takes the picture, then it will reduce the size of  
the picture “img” to 240 by 360 pickles using the following  
“img = cv2.resize(img, (360, 240))” in its program. The cv2  
represents the use of the Opencv file. Now the picture is in  
memory and the program needs to write the picture to the disk.

The program will write the program to the source  
disk file and to give it the name of “picture.png” and it  
does this by using the “cv2.imwrite(picture.png, img)”.  
It writes the picture on to the disk as picture.png.

## The program needs to show me the reduced picture on the console screen. The picture is shown and the program will wait for 5 seconds and then it will destroy the picture that is on the console by using “cv2.destroyAllWindows()”.

## All of this works on my personal computer; however, when I use the DroneBlocks I need to use my cell phone which is a Samsung Note 9 cell phone. I go into another room that is away from my personal computer.

Own my cell phone, I bring up the DroneBlocks and set  
the variables to perform the following. The variables are:  
“takeoff”, “hover 5 seconds”, “yaw right 90 degrees”, and  
“land”. I make sure to wait for the connect to Tello and  
to make sure that the battery percentage is shown.

I press the “launch mission” and I quickly get the picture.pgn  
showing on my screen. The picture is reduced and it never goes  
away. I also get the DroneBlocks message of “Abort Mission”.

I check the DroneBlocks files and the picture.png is installed.  
The time stamp on the file is perfect and the picture is correct.

I can push the picture.png off of the screen and run the  
DroneBlocks file, so that the Tello will perform the functions  
that were defined. After the Tello performs the functions,  
I will press the “launch mission” again. The Tello will perform  
the functions in the air. I pressed “launch mission” for 8 times.  
Every thing is working; however, I no longer get the picture. The  
picture shows up only on the first request to “launch mission”.

To avoid this picture problem, I have gone to the personal computer  
and loaded another Python program, that simple goes into the air and  
lands. I was hoping that the picture would go away now that I had  
put a different program into my Tello. However, I ran the DroneBlocks  
program again and the picture reappeared.

I need to remove this picture from my Tello, so that I do not get  
any more of the “Abort Mission” statements. Maybe the pictures are  
coming from the CV2 files.

Please help me solve this problem?

Thank you,  
Austin