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mirror of https://github.com/node-red/node-red-nodes.git synced 2023-10-10 13:36:58 +02:00
node-red-nodes/hardware/Arduino/35-arduino.js
2015-07-07 21:31:28 +01:00

170 lines
6.6 KiB
JavaScript

/**
* Copyright 2013,2015 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
module.exports = function(RED) {
"use strict";
var ArduinoFirmata = require('arduino-firmata');
// The Board Definition - this opens (and closes) the connection
function ArduinoNode(n) {
RED.nodes.createNode(this,n);
this.device = n.device || null;
this.repeat = n.repeat||25;
var node = this;
node.board = new ArduinoFirmata();
// TODO: nls
ArduinoFirmata.list(function (err, ports) {
if (!node.device) {
node.log(RED._("arduino.status.connectfirst"));
node.board.connect();
}
else {
if (ports.indexOf(node.device) === -1) {
node.warn(RED._("arduino.errors.devnotfound",{dev:node.device}));
node.board.connect();
}
else {
node.log(RED._("arduino.status.connect",{device:node.device}));
node.board.connect(node.device);
}
}
node.board.on('boardReady', function() {
node.log(RED._("arduino.status.connected",{device:node.board.serialport_name}));
if (RED.settings.verbose) {
node.log(RED._("arduino.status.version",{version:node.board.boardVersion}));
}
});
});
node.on('close', function(done) {
if (node.board) {
try {
node.board.close(function() {
done();
if (RED.settings.verbose) { node.log(RED._("arduino.status.portclosed")); }
});
} 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);
if (typeof this.serverConfig === "object") {
this.board = this.serverConfig.board;
var node = this;
node.status({fill:"red",shape:"ring",text:"node-red:common.status.connecting"});
node.board.on('connect', function() {
node.status({fill:"green",shape:"dot",text:"node-red:common.status.connected"});
//console.log("i",node.state,node.pin);
if (node.state == "ANALOG") {
node.board.on('analogChange', function(e) {
if (e.pin == node.pin) {
var msg = {payload:e.value, topic:"A"+e.pin};
node.send(msg);
}
});
}
if (node.state == "INPUT") {
node.board.pinMode(node.pin, ArduinoFirmata.INPUT);
node.board.on('digitalChange', function(e) {
if (e.pin == node.pin) {
var msg = {payload:e.value, topic:e.pin};
node.send(msg);
}
});
}
if (node.state == "SYSEX") {
node.board.on('sysex', function(e) {
var msg = {payload:e, topic:"sysex"};
node.send(msg);
});
}
});
}
else {
this.warn(RED._("arduino.errors.portnotconf"));
}
}
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);
if (typeof this.serverConfig === "object") {
this.board = this.serverConfig.board;
var node = this;
node.status({fill:"red",shape:"ring",text:"node-red:common.status.connecting"});
node.board.on('connect', function() {
node.status({fill:"green",shape:"dot",text:"node-red:common.status.connected"});
//console.log("o",node.state,node.pin);
node.board.pinMode(node.pin, node.state);
node.on("input", function(msg) {
if (node.state === "OUTPUT") {
if ((msg.payload === true)||(msg.payload.toString() == "1")||(msg.payload.toString().toLowerCase() == "on")) {
node.board.digitalWrite(node.pin, true);
}
if ((msg.payload === false)||(msg.payload.toString() == "0")||(msg.payload.toString().toLowerCase() == "off")) {
node.board.digitalWrite(node.pin, false);
}
}
if (node.state === "PWM") {
msg.payload = msg.payload * 1;
if ((msg.payload >= 0) && (msg.payload <= 255)) {
node.board.analogWrite(node.pin, msg.payload);
}
}
if (node.state === "SERVO") {
msg.payload = msg.payload * 1;
if ((msg.payload >= 0) && (msg.payload <= 180)) {
node.board.servoWrite(node.pin, msg.payload);
}
}
if (node.state === "SYSEX") {
node.board.sysex(msg.payload);
}
});
});
}
else {
this.warn(RED._("arduino.errors.portnotconf"));
}
}
RED.nodes.registerType("arduino out",DuinoNodeOut);
RED.httpAdmin.get("/arduinoports", RED.auth.needsPermission("arduino.read"), function(req,res) {
ArduinoFirmata.list(function (err, ports) {
res.json(ports);
});
});
}