nodecopter

A presentation for HowConf 2013.

Transcript

1. nodecopter Yes, this is about JavaScript.
2. @zachleat http://zachleat.com Filament Group
3. First, an apology.
4. Viewing this talk will probably cost you about $370.
9. Cameras: Front: 720p (1280x720) 30fps, 92° view, H.264 Bottom: QVGA (320x240) 60fps for ground speed
10. 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)
11. Emergency Mode Flip upside down or (in extreme cases) stick something in the propeller.
14. Meh.
15. “It’s all talk until the code runs.” —Ward Cunningham
16. Prerequisites Node.js nodejs.org NPM npmjs.org
17. $ npm install ar-drone
18. Connect to the drone
19. 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
20. $ node takeoff-and-land.js
21. //  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/
22. 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
23. var  pngStream  =  client.getPngStream(); pngStream.on('data',  console.log); var  videoStream  =  client.getVideoStream(); videoStream.on('data',  console.log); Camera
24. 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
25. Full API https://github.com/felixge/node-ar-drone
26. Bonus Round http://opencv.org/ https://github.com/peterbraden/node- opencv
27. var  cv  =  require('opencv'); cv.readImage("./hobbiton.jpg",  function(err,  im){   im.detectObject(cv.FACE_CASCADE,  {},  function(err,   faces){     for  (var  i=0;i<faces.length;  i++){       var  x  =  faces[i];       im.ellipse(x.x  +  x.width/2,  x.y  +  x.height/2,   x.width/2,  x.height/2);     }     im.save('./hobbiton-­‐faces.jpg');   }); }); Find the faces in a picture
28. Community Modules http://nodecopter.com/hack#modules
29. http://eschnou.github.io/ardrone-webflight/
30. 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
31. A ton more ideas and demos: http://nodecopter.com/impressions