gistfile1.txt

var sp = require("serialport")
    serialport = sp.SerialPort;

var port = "/dev/tty.usbmodem621";   // Update with your port tty path


var serial_port = new serialport(port, {
	baudrate: 9600,
  parser: sp.parsers.raw
});


serial_port.on("data", function (data) {
    console.log("new data");
    console.log("here: "+data);
});