Tello node red

[sreyamsjain]

Accidentally I closed my previous issue about Tello nodes

In your part6 flow diagram, there are some nodes that are Tello. Am I reading it wrong?

[johnwalicki]

In Part 6, the instructions teach you how to create Subflows for various Tello movements. They aren't actually Node-RED nodes, just snippets of Node-RED flows that are in separate tabs that become reusable.

[sreyamsjain]

Thanks, understood.

Is there a way to WIFI connect Tello with a local network that also gives the internet connection.

[sreyamsjain]

Do you have any solution flow that takes a video? Appreciate if you could share.
Thanks

[johnwalicki]

Yes - see this repo

https://github.com/johnwalicki/Node-RED-DroneViewer

[sreyamsjain]

Following that page, I do not find the flow - https://github.com/johnwalicki/Node-RED-DroneViewer/blob/master/flows/Node-RED-Tello-VideoStream-Control-Dashboard.json.

Has it moved to some other area?

[sreyamsjain]

I have tried following to install ffmpeg, followed all instructions, did npm start in telloview dir, I cannot open localhost:3000.

What could be the issue?

[johnwalicki]

The README link and flow location are correct. I didn't see any error loading https://raw.githubusercontent.com/johnwalicki/Node-RED-DroneViewer/master/flows/Node-RED-Tello-VideoStream-Starter.json

[johnwalicki]

After you run npm start do you see

[email protected] start /home/walicki/Drones/DroneViewer/telloview
node server.js

starting ffmpeg
Server started at http://127.0.0.1:3000/
Sending command: command

[johnwalicki]

Is there a way to WIFI connect Tello with a local network that also gives the internet connection.
Not with the Tello. I connect my laptop via a hard wired ethernet cable to the Internet and WiFi to the Tello.
The upgraded model - Tello EDU - allows you to connect the drone to normal WiFi

[sreyamsjain]

When I do - npm start in the telloview directory, I see as below without the starting server at ...

[email protected] start C:\Users\Sjain\Downloads\Node-RED-DroneViewer\telloview
node server.js

starting ffmpeg
Sending command: command

I have my laptop with internet connection available via wifi and with another wifi adapter I can connect to Tello as well.

Are the two below links different?
https://raw.githubusercontent.com/johnwalicki/Node-RED-DroneViewer/master/flows/Node-RED-Tello-VideoStream-Starter.json

https://github.com/johnwalicki/Node-RED-DroneViewer/blob/master/flows/Node-RED-Tello-VideoStream-Control-Dashboard.json

I would like to use the one with the control, which I do not find

[sreyamsjain]

Does this work under Windows Embedded Standard computer? running npm start fails indicating error in dronviewer-tello package.
unexpected token line 5 server.js - requiring child process

[johnwalicki]

What version of Node are you running? I see old git issues about
unexpected token - require child process
when you're running old versions of node.js.

[johnwalicki]

The first flow embeds the video stream in a Node-RED Dashboard. Very basic.
The second flow adds buttons to the Node-RED Dashboard to control and fly the drone.

[sreyamsjain]

Two things going on here since I am testing this on two machines separately.

1. on the Windows 10 machine - version of node.js - 10.16.3 and npm is 6.11.3. Here doing npm start, I get - starting ffmpeg & Sending command: command with no message Server starting at 127.0.0.1

2. On Windows Embedded system - where I get the child process error - version of node.js - 0.12.11 & npm is 2.14.9

Atleast on Windows 10 machine, I see the versions are the latest and I am not sure why I do not see server running on localhost?

[sreyamsjain]

OK, on the Windows Embedded machine, I upgraded now both npm and nodejs to latest versions. Running npm start in telloview dir, I get the following error messges ..

C:\Drone\telloview>npm start

[email protected] start C:\Drone\telloview
node server.js

C:\Drone\telloview\server.js:25
app.post(/streamon, async (req, res) => {
^
SyntaxError: Unexpected token (
at createScript (vm.js:56:10)
at Object.runInThisContext (vm.js:97:10)
at Module._compile (module.js:542:28)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:390:7)
at startup (bootstrap_node.js:150:9)

npm ERR! Windows_NT 6.1.7601
npm ERR! argv "c:\Program Files (x86)\Advantech\NodeRed Server\nodejs\node.
exe" "c:\Program Files (x86)\Advantech\NodeRed Server\nodejs\node_modules\
npm\bin\npm-cli.js" "start"
npm ERR! node v6.10.3
npm ERR! npm v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! [email protected] start: node server.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] start script 'node server.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the droneviewer-tello pac
kage,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node server.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs droneviewer-tello
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls droneviewer-tello
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! C:\Drone\telloview\npm-debug.log