gistfile1.txt

var serialport = require("serialport"); 
var SerialPort = serialport.SerialPort; 
// localize object constructor 
var sys = require("sys");
var port = "/dev/tty.usbmodemfd531"; 
//var port = "/dev/tty.usbserial-A6007zeJ"; // RFID reader 
var serial_port = new SerialPort(port, { 
  baudrate: 9600, 
  // parser: serialport.parsers.raw
  parser: serialport.parsers.readline("\r") 
}); 
serial_port.on("data", function (data) { 
  console.log("new data"); 
  sys.puts("here: "+data); 
});