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New app: TelloFPV

xcrost

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Sep 9, 2018
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I wonder how many people are now busy checking their videos for the nice blue movie lady?

But thats just the beginning. Its not about adding that static lady frame but about dynamically injecting subconscious frames that were downloaded before. It's called the 25th frame effect for subconscious mind control and could be my way to world domination. Or advertising revenue.
Or just bad ratings for low video quality. We shall see.
I started speaking with a German accent today :(
 
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Joined
Dec 28, 2018
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Congrats @volate!lo, I've tried your app and I find more enjoyable to use than the stock app. The latency is quite good and the video quality more than adequate. Can I ask how you dealt with the video stream? I've been struggling myself with finding suitable ffmpeg settings to keep latency low while being in a format comptabile with web browsers' ISO-BMFF or WEBM formats.
 

volate!lo

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Congrats @volate!lo, I've tried your app and I find more enjoyable to use than the stock app. The latency is quite good and the video quality more than adequate. Can I ask how you dealt with the video stream? I've been struggling myself with finding suitable ffmpeg settings to keep latency low while being in a format comptabile with web browsers' ISO-BMFF or WEBM formats.
I don't know ffmpeg, of course I read about it but never used it. TelloFpv decodes and converts the video stream using the stock android mechanisms.
 
Joined
Sep 30, 2018
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Location
Indonesia
I have issues with the additional mode 360, up and away, and circle because they didn't recorded into videos. The drone is circling, moving like they supposed to do but when i check the gallery there is no video. Normal shots and videos are working fine tough.

Im using samsung galaxy j4+ with mifi extender 2. And yes, purchased app.
 

raulvolador

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Jul 19, 2018
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On the other hand I have been thinking of re-setting EV to auto on each connect. Simply because most times you have to start adjusting EV anyway, and unless you fly several batteries in a row conditions will change from flight to flight.
GREAT IDEA. Please, reset EV to auto on each flight.

It happend to me many times that I modify EV value during a flight and I forget to change it on the next flight.

All the best.

raul
 

Ansia

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Oct 14, 2018
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Nonestica
I have issues with the additional mode 360, up and away, and circle because they didn't recorded into videos. The drone is circling, moving like they supposed to do but when i check the gallery there is no video. Normal shots and videos are working fine tough.

Im using samsung galaxy j4+ with mifi extender 2. And yes, purchased app.
Did you hit record before starting these features?
 
Joined
Dec 19, 2018
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Hi,
with my new T1s controller, the mapping does not work for the arrow keys of the DPad in the TelloFPV 0.97 Beta app. All other values are perfect for mapping, whether with BT or OTG connection.
But they work with the original app via BT!
Does anyone use the combination TelloFVP app 0.97 and GameSir T1s where the mapping of the D Map keys is selectable?
Thanks for hints.
 
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raulvolador

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v0.97 Tested succesfully

A lot of good stuff. Flying feelings are very good. I felt very comfortable flying with it. Great work @volate!lo we are lucky you are working hard for this growing comunity.

I succesfully tested new features, as corruption indicator (notice red ray on the left)
corruption indicator.jpg

I enjoyed a lot photo mode not distorted image, by adding side black bars.

Unfortunately, photo download use to fail into far flights, when low wifi signal. It happend to me twice last flight. After about 10 seconds and photo download percentage about 80% suddenly photo download failed :confused:

See here, photo taken at 2:46 (image noise added for privacy reasons)
photo start.jpg

At 2:54 (about 8 seconds after) percentaje downloaded gets 88%
photo 88 percent.jpg

And suddenly photo download failed at 2:55 (9 seconds)
photo failed.jpg

Can it be caused by a timer ? In that case, could you let us configure max time before photo download fail ?

All the best and keep doint so good work

raul.
 

volate!lo

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Dec 13, 2018
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Location
Germany
I have issues with the additional mode 360, up and away, and circle because they didn't recorded into videos. The drone is circling, moving like they supposed to do but when i check the gallery there is no video. Normal shots and videos are working fine tough.

Im using samsung galaxy j4+ with mifi extender 2. And yes, purchased app.
These are -like the APs- just flight modes for controlling the drone with no automatic recording. You have to start / stop recording manually before /after the flight mode.
 

volate!lo

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Location
Germany
Hi,
with my new T1s controller, the mapping does not work for the arrow keys of the DPad in the TelloFPV 0.97 Beta app. All other values are perfect for mapping, whether with BT or OTG connection.
But they work with the original app via BT!
Does anyone use the combination TelloFVP app 0.97 and GameSir T1s where the mapping of the D Map keys is selectable?
Thanks for hints.
T1s reports non-standard buttons when connected as a normal gamepad.
It seems that Ryze coded around the quirks of the Gamesir controllers. Or -more likely- they had access to the Gamesir SDK.

After the VR release I will look into totally flexible mapping. That is buttons can be mapped as sticks and sticks can be mapped as buttons. And any stick can be mapped onto any axis.
 
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volate!lo

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Dec 13, 2018
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Location
Germany
v0.97 Tested succesfully

A lot of good stuff. Flying feelings are very good. I felt very comfortable flying with it. Great work @volate!lo we are lucky you are working hard for this growing comunity.

I succesfully tested new features, as corruption indicator (notice red ray on the left)
View attachment 2591

I enjoyed a lot photo mode not distorted image, by adding side black bars.

Unfortunately, photo download use to fail into far flights, when low wifi signal. It happend to me twice last flight. After about 10 seconds and photo download percentage about 80% suddenly photo download failed :confused:

See here, photo taken at 2:46 (image noise added for privacy reasons)


At 2:54 (about 8 seconds after) percentaje downloaded gets 88%


And suddenly photo download failed at 2:55 (9 seconds)


Can it be caused by a timer ? In that case, could you let us configure max time before photo download fail ?

All the best and keep doint so good work

raul.
Are you trying to trigger heart attacks? I though my video feed was producing these strange images!! :)

For photo download. Thats not that easy because of the way Tello handles the photo download. It has some error correction in it, but not enough to be really reliable. Making TelloFpv wait longer for the data won't help, because of how Tello handles the download.

If the stock app is better in this area then I need to look into this. There is of course the chance that there is an error in the handling, but not very likely. Pls try the stock app in similar conditions.
 
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raulvolador

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Are you trying to trigger heart attacks? I though my video feed was producing these strange images!! :)

For photo download. Thats not that easy because of the way Tello handles the photo download. It has some error correction in it, but not enough to be really reliable. Making TelloFpv wait longer for the data won't help, because of how Tello handles the download.

If the stock app is better in this area then I need to look into this. There is of course the chance that there is an error in the handling, but not very likely. Pls try the stock app in similar conditions.
I'm sorry, I did not want to kill you from a heart attack. At least until you finish app codding ;)

I reviewed other flight recordings and photo download failure always happend at 9-10 seconds, no matter download percentage showed, that made me believe it was a programed timer.

At least, your app didn't hangs and let us try shooting photo again.

If I feel brave I'll try testing with stock app, although it does not give me security for far flights.

all the best.
 

volate!lo

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There is a timer that kills the download around the 10 sec mark.

Can you re-check the videos to see if the % counter was still increasing when it was killed? Because my Tello doesn't send any data after around 8sec so killing it after 10sec sounded good for me.
 

raulvolador

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I am pretty sure download percentage is still growing when photo download fail message appears. I will send you some video sample.

all the best
 

nahuel

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Dec 4, 2018
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If the stock app is better in this area then I need to look into this. There is of course the chance that there is an error in the handling, but not very likely. Pls try the stock app in similar conditions.
With the stock app I've had situations when the drone was as high as it can go and I would take a photo and then when I wanted to see them, nothing was there! What I noticed is that when the shutter button stops spinning immediately after taking the photo, then it didn't download. SO I usually press it two or three more times until I notice that it spins for some time :p Then it seems to download. Your app has the advantage that it tells you when it fails, which is nice.

On a different matter, I find the decision of making the app sounds depend on the keyboard sound settings... weird. Can you explain why you did that? I don't want to have to have sound on for the keyboard in order to get sound alerts from the app. I'm fine with using multimedia or ring volume for that purpose, though.
 

volate!lo

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Dec 13, 2018
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Germany
On a different matter, I find the decision of making the app sounds depend on the keyboard sound settings... weird. Can you explain why you did that? I don't want to have to have sound on for the keyboard in order to get sound alerts from the app. I'm fine with using multimedia or ring volume for that purpose, though.
What should I say... It was late in the night, I was tired, made a dumb decision, had a hangover, ... pick one!

Will be fixed in the next release.


The rpob with photo download is that you can't say: Hey Tello something went wrong, please send it again. There is some send-acknowledge scheme, but if Tello doesn't resend some missing / broken part of the file there is no way to complete a photo.
It could automatically trigger the photo again, but by then it's ten seconds later and Tello is facing in another direction.
 

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