Tweet with "#obniz"! Flag will shake!

How it works

It shake a flag when someone tweet with hashtag “#obniz”.

Materials

obniz – 1
servomotor – 1
flag – 1
battery or usb adaptor & cable – 1

Program

// Nodejs

var Obniz = require('obniz');
var Twitter = require('twitter');

var obniz = new Obniz("0000-0000");
 
obniz.onconnect = function(){
  var servo = obniz.wired("ServoMotor", {signal:0,vcc:1, gnd:2});
  servo.angle(10);
}
 
var client = new Twitter({
  consumer_key: '<ConsumerKey>',
  consumer_secret: '<Secret>',
  access_token_key: '<TokenKey>',
  access_token_secret: '<TokenSecret>'
});
 
var stream = client.stream('statuses/filter',  {track: '#obniz'});
stream.on('data', function(event) {
  if (event) {
    var count = 0;
    var angles = [10,50,10,50,10,50,10]
    var timer = setInterval(function(){
      count++;
      servo.angle(angles[count]);
      if (count >= 6){
        clearInterval(timer);
      }
    }, 1000);
  }
});