Zetta App.js

new.js

var zetta = require('zetta');
var ArduinoScout = require('./scouts/arduino_scout');

var app = zetta();
app.name('I heard that!');
app.load(ArduinoScout);

app.observe('sound', function(microphone) {
  app.observe('lcd', function(lcd) {
    microphone.stream('sound').read(function(value) {
      if(value > 160){
	lcd.call('update','I heard that!');
      }
    });

    app.expose(lcd);
  });

  app.expose(microphone);
});

app.listen(process.env.PORT || 3001);

original.js

var IHeardThatApp = module.exports = function(){
  this.name = 'I heard that!';
}

IHeardThatApp.prototype.init = function(zetta) {
  app.observe('sound', function(microphone) {
    app.observe('lcd', function(lcd) {
      microphone.stream('sound').read(function(value) {
	if(value > 160){
	  lcd.call('update','I heard that!');
	}
      });

      app.expose(lcd);
    });

    app.expose(microphone);
  });  
};