Driver example

1.js

var Driver = require('zetta').Driver;
var util = require('util');

// Name your driver the device it's modeling
var Microphone = module.exports = function(port){
  Driver.call(this);

  // not saved and not exposed in api
  this._port = port;
  // saved and exposed in api
  this.amplitude = 123;
};
util.inherits(Microphone, Driver);

// must include init function
Microphone.prototype.init = function(config) {
  config
    .state('ready')
    .name('Matt\'s Sound Sensor') // name is optional but our examples should show it.
    .type('sound')
    .stream('amplitude', this.streamAmplitude); // .stream{Name} as function
}

Microphone.prototype.streamAmplitude = function(stream) {
  var self = this;
  this._port.on('data', function(d) {
    var data = Number(d.toString());

    self.amplitude = data;

    stream.write(data);
  });
};