module.exports = function(RED) { "use strict"; var Board = require('firmata'); var SP = require('serialport'); // The Board Definition - this opens (and closes) the connection function ArduinoNode(n) { RED.nodes.createNode(this,n); this.device = n.device || null; this.running = false; this.reported = false; var node = this; var startup = function() { node.board = new Board(node.device, function(e) { if ((e !== undefined) && (e.toString().indexOf("cannot open") !== -1) ) { if (node.reported === false) { node.error(RED._("arduino.errors.portnotfound",{device:node.device})); node.reported = true; } } else if (e === undefined) { node.running = true; node.reported = false; node.board.once('ready', function() { node.log(RED._("arduino.status.connected",{device:node.board.sp.path})); if (RED.settings.verbose) { node.log(RED._("arduino.status.version",{version:node.board.firmware.name+"-"+node.board.version.major+"."+node.board.version.minor})); } }); node.board.once('close', function() { node.error(RED._("arduino.status.portclosed")); }); node.board.once('disconnect', function() { if (node.running === true) { setTimeout(function() { node.running = false; startup(); }, 5000); } }); } }); setTimeout(function() { if (node.running === false) { startup(); } }, 5000); }; startup(); node.on('close', function(done) { node.running = false; if (node.board) { try { node.board.transport.close(function() { if (RED.settings.verbose) { node.log(RED._("arduino.status.portclosed")); } done(); }); } catch(e) { done(); } } else { done(); } }); } RED.nodes.registerType("arduino-board",ArduinoNode); // The Input Node function DuinoNodeIn(n) { RED.nodes.createNode(this,n); this.buttonState = -1; this.pin = n.pin; this.state = n.state; this.arduino = n.arduino; this.serverConfig = RED.nodes.getNode(this.arduino); this.running = false; var node = this; if (typeof this.serverConfig === "object") { var startup = function() { node.board = node.serverConfig.board; node.oldval = ""; node.status({fill:"grey",shape:"ring",text:"node-red:common.status.connecting"}); var doit = function() { node.running = true; node.status({fill:"green",shape:"dot",text:"node-red:common.status.connected"}); if (node.state === "ANALOG") { node.board.pinMode(node.pin, 0x02); node.board.analogRead(node.pin, function(v) { if (v !== node.oldval) { node.oldval = v; node.send({payload:v, topic:"A"+node.pin}); } }); } if (node.state === "INPUT") { node.board.pinMode(node.pin, 0x00); node.board.digitalRead(node.pin, function(v) { if (v !== node.oldval) { node.oldval = v; node.send({payload:v, topic:node.pin}); } }); } if (node.state === "PULLUP") { node.board.pinMode(node.pin, 0x0B); node.board.digitalRead(node.pin, function(v) { if (v !== node.oldval) { node.oldval = v; node.send({payload:v, topic:node.pin}); } }); } if (node.state == "STRING") { node.board.on('string', function(v) { if (v !== node.oldval) { node.oldval = v; node.send({payload:v, topic:"string"}); } }); } node.board.once('disconnect', function() { node.status({fill:"red",shape:"ring",text:"node-red:common.status.not-connected"}); if (node.running) { setTimeout(function() { node.running = false; startup(); }, 5500); } }); } if (node.board.isReady) { doit(); } else { node.board.once("ready", function() { doit(); }); } setTimeout(function() { if (node.running === false) { startup(); } }, 4500); } startup(); } else { node.warn(RED._("arduino.errors.portnotconf")); } node.on('close', function() { node.running = false; }); } RED.nodes.registerType("arduino in",DuinoNodeIn); // The Output Node function DuinoNodeOut(n) { RED.nodes.createNode(this,n); this.buttonState = -1; this.pin = n.pin; this.state = n.state; this.arduino = n.arduino; this.serverConfig = RED.nodes.getNode(this.arduino); this.running = false; var node = this; if (typeof node.serverConfig === "object") { var startup = function() { node.board = node.serverConfig.board; node.status({fill:"grey",shape:"ring",text:"node-red:common.status.connecting"}); var doit = function() { node.running = true; node.status({fill:"green",shape:"dot",text:"node-red:common.status.connected"}); node.on("input", function(msg) { if (node.board.isReady) { if (node.state === "OUTPUT") { node.board.pinMode(node.pin, 0x01); if ((msg.payload === true)||(msg.payload.toString() == "1")||(msg.payload.toString().toLowerCase() == "on")) { node.board.digitalWrite(node.pin, node.board.HIGH); } if ((msg.payload === false)||(msg.payload.toString() == "0")||(msg.payload.toString().toLowerCase() == "off")) { node.board.digitalWrite(node.pin, node.board.LOW); } } if (node.state === "PWM") { node.board.pinMode(node.pin, 0x03); msg.payload = parseInt((msg.payload * 1) + 0.5); if ((msg.payload >= 0) && (msg.payload <= 255)) { node.board.analogWrite(node.pin, msg.payload); } } if (node.state === "SERVO") { node.board.pinMode(node.pin, 0x04); msg.payload = parseInt((msg.payload * 1) + 0.5); if ((msg.payload >= 0) && (msg.payload <= 180)) { node.board.servoWrite(node.pin, msg.payload); } } if (node.state === "SYSEX") { node.board.sysexCommand(msg.payload); } if (node.state === "STRING") { node.board.sendString(msg.payload.toString()); } } }); node.board.once('disconnect', function() { node.status({fill:"red",shape:"ring",text:"node-red:common.status.not-connected"}); if (node.running === true) { setTimeout(function() { node.running = false; startup(); }, 5500); } }); } if (node.board.isReady) { doit(); } else { node.board.once("ready", function() { doit(); }); } setTimeout(function() { if (node.running === false) { startup(); } }, 4500); } startup(); } else { node.warn(RED._("arduino.errors.portnotconf")); } node.on('close', function() { node.running = false; }); } RED.nodes.registerType("arduino out",DuinoNodeOut); RED.httpAdmin.get("/arduinoports", RED.auth.needsPermission("arduino.read"), function(req,res) { SP.list(function(error, ports) { res.json(ports); }); }); }