Rn-dji-tello NPM

Quick start

This wrapper is totally based on https://github.com/AlexanderGranhof/tello-drone, special thanks to the author of this repo. 🙏

yarn add rn-dji-tello

npm install rn-dji-tello

Usage

This is a Tello SDK wrapper exposed here

import Tello from 'rn-dji-tello';
const drone = new Tello();

Listeners

drone.current.on(event_type, callback);

event type	description	callback args
connection	success connection listener	-
state	sensor state	state: DroneState
send	on send event listener	error: Error, lenght: Number
message	-	message: String

Senders

await drone.current?.send(command, options?, froce?);

command list:

type list = 'command' | 'takeoff' | 'land' | 'streamon' | 'streamoff' | 'emergency' | 'up' | 'down' | 'left' | 'right' | 'forward' | 'back' | 'cw' | 'ccw' | 'flip' | 'go' | 'curve' | 'speed' | 'rc' | 'wifi' | 'speed?' | 'battery?' | 'time?' | 'wifi?' | 'sdk?' | 'sn?'

interface options {
    value?: number | string;
    x?: number;
    y?: number;
    z?: number;
    x1?: number;
    y1?: number;
    z1?: number;
    x2?: number;
    y2?: number;
    z2?: number;
    speed?: number;
    a?: number;
    b?: number;
    c?: number;
    d?: number;
}

force: boolean

Please, read tello documentation to group the appropriate options for the desired command.

What's included

Support for typescript and sockets using react-native-udp.

Example

import  React, {useRef, useState} from  'react';

import {Button, SafeAreaView, StatusBar, StyleSheet, View} from  'react-native';

import  Tello  from  'rn-dji-tello';


const  App = () => {

  const [init, setInit] = useState<boolean>(false);

  const  drone = useRef<Tello>();



  const  onInit = () => {

    try {

      drone.current = new  Tello();



      drone.current.on('connection', () => {
       setInit(true);

       console.log('Connected to drone');

      });



      drone.current.on('state', state  => {

        console.log('Received State > ', state);

      });



      drone.current.on('send', (err, length) => {

        if (err) {
          console.log('error', err);
        }

        console.log(`Sent command is ${length} long`);

      });


      drone.current.on('message', message  => {

        console.log('Recieved Message > ', message);

      });
 

    } catch (error) {

      console.error(error);

      setInit(false);

    }
  };



  const  run = async () => {

    await  drone.current?.send('takeoff');

    await  drone.current?.send('battery?');

    await  drone.current?.send('land');

  };



  return (

    <SafeAreaView  style={styles.container}>

      <StatusBar  barStyle="light-content"  />

      <View  style={styles.viewWrapper}>

        <Button  title="Run"  disabled={!init}  onPress={run}  />

        <Button  title="Init"  disabled={init}  onPress={onInit}  />

      </View>

    </SafeAreaView>

  );

};

  
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