#ttyATH0::askfirst:/bin/ash --login

void setup() {
  Serial.begin(9600);
}

void loop() {
  Serial.println("dudee");
  delay(100);
}

var SerialPort = require("serialport").SerialPort
var serialPort = new SerialPort("/dev/ttyATH0", {
    baudrate: 9600,
    dataBits: 8,
    parity: 'none',
    stopBits: 1,
    flowControl: false
}, false);

console.log("hello");

serialPort.on("open", function () {
    console.log('open');
    serialPort.on('data', function(data) {
        console.log('data received: ' + data);
    });
});

serialPort.on('error', function(err) {
    console.log('error: '+err);
});

serialPort.open();

~/test# node serial.js
hello
open