nodecopter Yes, this is about JavaScript.

@zachleat http://zachleat.com Filament Group

First, an apology.

Viewing this talk will probably cost you about $370.

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Cameras: Front: 720p (1280x720) 30fps, 92° view, H.264 Bottom: QVGA (320x240) 60fps for ground speed

Linux 2.6.32 (BusyBox) 802.11B,G,N WiFi access point Gyroscope (orientation) Accelerometer Magnetometer (compass, direction) Pressure Sensor (altitude) Ultrasound Sensor (altitude up to 6m)

Emergency Mode Flip upside down or (in extreme cases) stick something in the propeller.

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Meh.

“It’s all talk until the code runs.” —Ward Cunningham

Prerequisites Node.js nodejs.org NPM npmjs.org

$ npm install ar-drone

Connect to the drone

var  arDrone  =  require(  'ar-­‐drone'  ); var  client  =  arDrone.createClient(); client.takeoff(); client.after(  4000,  function()  {   this.stop();   this.land(); }); Save this in takeoff-and-land.js

$ node takeoff-and-land.js

//  argument:  speed  0-­‐1 client.up(  1  );  //  altitude client.down(  1  ); client.left(  1  );  //  bank  (roll) client.right(  1  );  //  bank  (roll) client.front(  1  );  //  pitch client.back(  1  );  //  pitch client.clockwise(  1  );  //  yaw  (spin) client.counterClockwise(  1  );  //  yaw  (spin) client.stop();  //  movement=0 Also http://ministryoftype.co.uk/words/article/pitch_bank_and_yaw/

client.animate('flipLeft',  1500); client.animate('flipRight',  1500); /* 'phiM30Deg',  'phi30Deg',  'thetaM30Deg',  'theta30Deg',  'theta20degYaw200deg', 'theta20degYawM200deg',  'turnaround',  'turnaroundGodown',  'yawShake', 'yawDance',  'phiDance',  'thetaDance',  'vzDance',  'wave',  'phiThetaMixed', 'doublePhiThetaMixed',  'flipAhead',  'flipBehind' */ Also

var  pngStream  =  client.getPngStream(); pngStream.on('data',  console.log); var  videoStream  =  client.getVideoStream(); videoStream.on('data',  console.log); Camera

var  arDrone  =  require(  'ar-­‐drone'  ); var  fs  =  require(  'fs'  ); var  client    =  arDrone.createClient(); var  png  =  client.getPngStream(); png.on(  'error',  function  (  error  )  {   console.error(  'error:  '  +  err  ); }); png.on(  'data',  function(  buffer  )  {   console.log(  buffer.length  );   fs.writeFile(  'camera.png',  buffer,  'binary',  function(  error  )  {     if(  error  )  {       console.log(  error  );     }  else  {       console.log(  'Success.'  );     }     process.exit(0);   }); }); Take a picture, save it to the file system

Full API https://github.com/felixge/node-ar-drone

Bonus Round http://opencv.org/ https://github.com/peterbraden/node- opencv

var  cv  =  require('opencv'); cv.readImage("./hobbiton.jpg",  function(err,  im){   im.detectObject(cv.FACE_CASCADE,  {},  function(err,   faces){     for  (var  i=0;i

Community Modules http://nodecopter.com/hack#modules

http://eschnou.github.io/ardrone-webflight/

Control drone with a Kinect https://github.com/maxogden/drone-kinect Control with Wii remote https://github.com/voodootikigod/wii-drone LeapMotion http://www.youtube.com/watch?v=sWjbdZU23_0&t=22

A ton more ideas and demos: http://nodecopter.com/impressions