javascript - Serial port not working? -


i made program sends out data arduino detects sent , turns on correct pin according key pressed.

when using arduino software windows computer arduino sketch works fine, can make each pin turn on , off sending either w s or d.

when sending via node rx light on arduino flashes nothing else happens.

can help?

node.js program:

var httpserver = require('http').createserver(function(req, response){ /* serve static files */ }) httpserver.listen(8080);  var nowjs = require("now"); var = nowjs.initialize(httpserver);  everyone.now.logstuff = function(msg){     console.log(msg); }  var serialport = require('serialport2').serialport; var assert = require('assert');  var portname;  if (process.platform == 'win32') {   portname = 'com4'; } else if (process.platform == 'darwin') {   portname = '/dev/cu.usbserial-a800efn5'; } else {   portname = '/dev/ttyusb0'; }  var readdata = ''; var sp = new serialport();  sp.on('close', function (err) {   console.log('port closed'); });  sp.on('error', function (err) {   console.error("error", err); });  sp.on('open', function () {   console.log('port opened... press reset on arduino.'); });  sp.open(portname, {   baudrate: 9600,   databits: 8,   parity: 'none',   stopbits: 1,   flowcontrol: false });  everyone.now.forward = function() { sp.write("w"); }  everyone.now.back = function() { sp.write("s"); }  everyone.now.left = function() { sp.write("a"); }  everyone.now.right = function() { sp.write("d"); }  sp.on('data', function(data) {   console.log(data.tostring()); });

arduino program:

void setup(){   serial.begin(9600);   serial.write("ready");   //set pins need output pins   pinmode(8, output);   pinmode(9, output);   pinmode(10, output);   pinmode(11, output); }  void loop (){   if (serial.available() > 0) {      //read serial character     char ser = serial.read();     serial.write(ser);     //note because serial read "char" , not "int", read value must compared character numbers     //hence quotes around numbers in case statement     switch (ser) {       case 'w':         move(8);         break;       case 's':         move(9);         break;       case 'a':         move(10);         break;       case 'q':         move(10);         move(8);                 break;       case 'd':         move(11);         break;       case 'e':         move(11);         move(8);         break;     }   } }  void move(int pin){   serial.print(pin);     digitalwrite(pin, high);   delay(1);   digitalwrite(pin, low); }

i dabbled this. arduino automatically resets when receives serial communication things other arduino ide. why can send ide not node.js.

i have uno , put capacitor between reset , ground.here's page info on subject.
luck. http://arduino.cc/playground/main/disablingautoresetonserialconnection


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