Another mi xiaomi mod. But not what you'd expect...

Customerx · Jan 26, 2019

Yet to test fully but indoors it's a strong signal.

mounted on top and powered from the TELLO battery charger slot.
So it works by....
Phone to mi ----} modded mi to drone.

leandjb · Jan 26, 2019

Bro, Interesting Mod!. Please share us a video about latency and test it!

Customerx · Jan 26, 2019

Will do. Once I get a decent weather day here I will take it out.

raulvolador · Jan 27, 2019

I understood your are using TWO xiaomi extenders !

It's a very curious idea

Keep us informed

LELET81 · Jan 27, 2019

Hurry up, go out and test it

Customerx · Jan 27, 2019

Probably will get chance tomorrow. So here's hoping !!

SleepyRobo · Jan 27, 2019

It uses directional patch antennas. It'll work best straight up but once you move a few degrees laterally you'll lose too much db. But if you found a way to mount it on top or on bottom without much drag from the board you could then use it to extend the range.

SleepyRobo · Jan 27, 2019

. It's a omnidirectional antenna based 2.4ghz wifi only extender. I don't know if it's compatible with the Tello smart switching wifi antennas, that's my only concern. That is the only thing I haven't been able to get out of Ryze support, is what WiFi extender technology is required to use with Tello.

Customerx · Jan 27, 2019

It's well and truly mounted to the TELLO lol just hoping there is enough power to power the mi. Know it will reduce flight time pretty sure of that.

The antennas for the TELLO are in the feet I believe, so the main antennas for the mi are placed at the rear, away from the body of the craft.

SleepyRobo · Jan 27, 2019

Yes they are in the feet but they face fwd of craft since the Tello was intended to be a "selfie" cam in more instances than others. I am in no way saying your idea won't work, just trying to reinforce already established theories on how wifi radio signals work.

Here is an example of what I'm trying to say, I did an experiment with my new phone a year ago then, I wondered how much great signal I could get during a speed test to my router, using the same "host server" I used Chrome's speed test easily searched in address bar. From my room it was descent. (One bedroom apartment) then I did 10 feet away, Mbps was increasing, then I did 5 feet, wow was I amazed how much better this new phone did compared to my old phone, then I did the test with the back of my phone up against the routers side, it's a upright internal antenna based router. Anyways my signal went way down, tried several times, not much better. Back up a couple feet and it's super fast again.

Wifi antennas have a negative zone, those that use 180 degree patch style antennas like mine. I know because I took mine apart at one point. Like a bubble.

SleepyRobo · Jan 27, 2019

What we all need to do is create or buy a can antenna that will work with the Tello, then the hard part of tracking the Tello using servos to pan and tilt the can antenna. This method would stabilize the signal and keep db up and allow more distance with greater control.

Yes this means a ground station setup but it's the only thing I see working the best.

Customerx · Jan 27, 2019

Like this idea..

Maybe track the ir sensors, could work???
Then again they'd be pointed down.

volate!lo · Jan 27, 2019

SleepyRobo said:
Wifi antennas have a negative zone, those that use 180 degree patch style antennas like mine. I know because I took mine apart at one point. Like a bubble.

Can you explain this?

SleepyRobo · Jan 27, 2019

Customerx said:
Like this idea..

Maybe track the ir sensors, could work???
Then again they'd be pointed down.

I was thinking adding a 3D GPS tracker and doing it that way.

Customerx · Jan 28, 2019

Managed to try it out today, but in very windy conditions. Normally the park that I fly in is terrible for WiFi signals always losing connection, probably due to all the house and their WiFi. Hate the way the TELLO points down tho, couldn't fly too high because of the wind but here's a video, excuse my poor editing skills first time I've used this software!!

Will be doing a distance check asap!!

leandjb · Jan 28, 2019

Thanks for sharing. It's a great job!

LELET81 · Jan 28, 2019

It seems to work fine! What about app's settings? Iframe and bitrate?Now i'm waiting distance test... Simple but good idea! Thanks for sharing

Customerx · Jan 28, 2019

Will be using the TELLOfpv app next as it shows the dB. Will show the setup... As I left it on auto on the app. Will need to study up on iframe etc as I believe you mean the converter I used for the editor?? Is that right. Before uploading to YouTube.

xcrost · Jan 28, 2019

Customerx said:
Will be using the TELLOfpv app next as it shows the dB. Will show the setup... As I left it on auto on the app. Will need to study up on iframe etc as I believe you mean the converter I used for the editor?? Is that right. Before uploading to YouTube.

The Tello FPV app lets you select iFrame interval as well as bitrate. For long distance you would set to 1mbps bitrate and 1sec. interval. 0 second interval option will be in next release.