Led.RGB.pulse() kills Spark

pulse-and-die.js

var five   = require('johnny-five'),
  Spark    = require('../lib/spark'),
  board;


// Create Johnny-Five board connected via Spark
board = new five.Board({
  io: new Spark({
    token: process.env.SPARK_TOKEN,
    deviceId: process.env.SPARK_DEVICE_ID
  })
});

board.on('ready', function() {

  // Initialize the RGB LED
  var led = new five.Led.RGB({
    pins: {
      red:   'A5',
      green: 'A6',
      blue:  'A7'
    }
  });

  led.pulse();

});

Likely too many instruction messages being sent :|