Ryze Tello drone Node.JS library

Based on PyTello, TelloLib and the tello Go

WARNING

Software in development and provided "as is". Use at your own risk. Safety first! Remove props before test!

How to

const NodeTello = require('./lib/nodetello.js');
const NodeTello_webclient = require('./lib/nodetello_webclient.js');

// init web client
//var webclient = new NodeTello_webclient('ffmpeg');    // in-browser video
var webclient = new NodeTello_webclient('mplayer'); // open mplayer window with low latency video

    webclient.init();

// init drone
var drone = new NodeTello();

// set video path
drone.save_video_path = "./video/";
// set callback for video feed
drone.tello_video_output = function (h264) { webclient.h264encoder_in(h264); };
// config drone telemetry (drone -> node.js -> browser)
drone.tello_telemetry_config = { 
   px: "MVO.PX",
   py: "MVO.PY",
   pz: "MVO.PZ"
};
// set callback for telemetry feed
drone.tello_telemetry_output = function (data) { webclient.telemetry(data); };

// lets go!
drone.init();

// browser -> webclient -> tello commands
webclient.tello_cmd = function (data) { drone.tello_cmd(data); }

Init

Init process is basic at that moment:

connect to drone
get some settings/values (version and altitude limit)
set settings (stick position)
init video feed
init log and status receive and parse
start video transcode (required ffmpeg!)
start http server and websocket

Web client

Web client must be available on http://127.0.0.1:8080 after npm start and show almost fine video from drone with 0.5 seconds lag.

Convert video

Video feeds stored to ./video/TIMESTAMP.h264 and must be redecode, e.g. ffmpeg -i TIMESTAMP.h264 -crf 20 video.mp4

Flight

Keyboard

Shift + Space - Takeoff
Space - Land
ArrowUp and ArrowDown - Pitch (forward/backward)
ArrowLeft and ArrowRight - Roll (left/right)
W and S - Throttle (Up/Down)
A and D - Yaw (Rotate)

Speed is limited = 0.5

Gamepad/Joystick

WARNING, used SHANWAN PS3/PC Gamepad (Vendor: 2563 Product: 0575) in Linux

Left Stick - trottle and yaw (MODE2)
Right Stick - pitch and roll (MODE2)
X, Y, A, B - land
start - takeoff