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rflink.js
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rflink.js
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module.exports = function(RED) {
"use strict"
// rflink device configuration node
function RFLinkDeviceNode(config) {
RED.nodes.createNode(this, config);
this.devname = config.devname;
this.devid = config.devid;
}
RED.nodes.registerType("rflink device", RFLinkDeviceNode);
// rflink in node
function RFLinkInNode(config) {
RED.nodes.createNode(this, config);
this.device = RED.nodes.getNode(config.device);
this.name = config.name;
var node = this;
this.on('input', function(msg) {
var valid = true;
if (!node.device) {
valid = false;
node.error('Please set rflink device to be used.');
node.status({ fill: "red", shape: "ring", text: "device not provided" });
}
if (valid) {
// Check if the message is for the given device
// 20;01;AcuriteV2;ID=e9a4;TEMP=00d8;HUM=47;BAT=OK;
var idx = msg.payload.indexOf(node.device.devname + ";ID=" + node.device.devid + ";");
var command = msg.payload.substring(0, 3)
if (idx >= 0 && command == "20;") {
// Notifies data has been received
node.status({ fill: "green", shape: "ring", text: "data received" });
msg.payload = parseRFLinkPackets(msg.payload);
msg.devname = node.device.devname;
msg.devid = node.device.devid;
node.send(msg);
}
}
});
}
RED.nodes.registerType("rflink in", RFLinkInNode);
// rflink out node
function RFLinkOutNode(config) {
RED.nodes.createNode(this, config);
this.device = RED.nodes.getNode(config.device);
this.target = config.target;
this.command = config.command;
this.milightcontrol = config.milightcontrol;
this.name = config.name;
var node = this;
this.on('input', function(msg) {
var valid = true;
if (!node.device) {
valid = false;
node.error('Please set rflink device to be used.');
node.status({ fill: "red", shape: "ring", text: "device not provided" });
}
if (valid) {
if (typeof msg.target == 'undefined' && !node.target) {
valid = false;
node.error('Please set target to be used.');
node.status({ fill: "red", shape: "ring", text: "target not provided" });
}
}
if (valid) {
if (typeof msg.command == 'undefined' && !node.command) {
valid = false;
node.error('Please set command to be used.');
node.status({ fill: "red", shape: "ring", text: "command not provided" });
}
}
msg.devname = node.device.devname;
msg.devid = node.device.devid;
msg.target = node.target || msg.target;
msg.command = node.command || msg.command;
if (valid && msg.devname == "MiLightv1") {
if (typeof msg.milightcontrol == 'undefined' && !node.milightcontrol) {
valid = false;
node.error('Please set MiLight control to be used.');
node.status({ fill: "red", shape: "ring", text: "MiLight control not provided" });
}
}
msg.milightcontrol = node.milightcontrol || msg.milightcontrol;
var packet;
if (valid) {
// 10;Kaku;00004d;1;OFF;
if (msg.devname != "MiLightv1") {
packet = "10;" + msg.devname + ";" + msg.devid + ";" + msg.target + ";" + msg.command + ";";
// 10;MiLightv1;F746;01;34BC;UNPAIR;
} else {
packet = "10;" + msg.devname + ";" + msg.devid + ";" + msg.target + ";" + msg.milightcontrol + ";" + msg.command + ";";
}
}
if (packet) {
node.status({ fill: "green", shape: "ring", text: "packet written" });
msg.payload = packet;
node.send(msg);
}
});
}
RED.nodes.registerType("rflink out", RFLinkOutNode);
// parse function for RFLink packets
// see original function code: http://tech.scargill.net/rflink-and-node-red/
function parseRFLinkPackets(packet) {
var result = {};
var parts = packet.split(";");
result.name = parts[2];
var idx = 3;
var value;
while (idx < parts.length) {
value = parts[idx].split("=");
switch (value[0]) {
case "ID": result.id = value[1]; break;
case "SWITCH": result.switch = value[1]; break;
case "CMD": result.cmd = value[1]; break;
case "SET_LEVEL": result.set_level = parseInt(value[1], 10); break;
case "TEMP": result.temp = parseInt(value[1], 16);
if ((result.temp & 0x8000) > 0) { // temperature is an signed int16
result.temp = result.temp & 0x7FFF;
result.temp = 0-result.temp;
}
result.temp = result.temp / 10;
break;
case "HUM": result.hum = parseInt(value[1], 10); break;
case "BARO": result.baro = parseInt(value[1], 16); break;
case "HSTATUS": result.hstatus = parseInt(value[1], 10); break;
case "BFORECAST": result.bforecast = parseInt(value[1], 10); break;
case "UV": result.uv = parseInt(value[1], 16); break;
case "LUX": result.lux = parseInt(value[1], 16); break;
case "BAT": result.bat = value[1]; break;
case "RAIN": result.rain = parseInt(value[1], 16) / 10; break;
case "RAIN": result.rainrate = parseInt(value[1], 16) / 10; break;
case "WINSP": result.winsp = parseInt(value[1], 16) / 10; break;
case "AWINSP": result.awinsp = parseInt(value[1], 16) / 10; break;
case "WINGS": result.wings = parseInt(value[1], 16); break;
case "WINDIR": result.windir = parseInt(value[1], 10) * 22.5; break; // Wind direction 0-15 reflecting 0-360 degrees in 22.5 degree steps (decimal)
case "WINCHL": result.winchl = parseInt(value[1], 16); break;
case "WINTMP": result.wintmp = parseInt(value[1], 16); break;
case "CHIME": result.chime = parseInt(value[1], 10); break;
case "SMOKEALERT": result.smokealert = value[1]; break;
case "PIR": result.pir = value[1]; break;
case "CO2": result.co2 = parseInt(value[1], 10); break;
case "SOUND": result.sound = parseInt(value[1], 10); break;
case "KWATT": result.kwatt = parseInt(value[1], 16); break;
case "WATT": result.watt = parseInt(value[1], 16); break;
case "CURRENT": result.current = parseInt(value[1], 10); break;
case "CURRENT2": result.current2 = parseInt(value[1], 10); break;
case "CURRENT3": result.current3 = parseInt(value[1], 10); break;
case "DIST": result.dist = parseInt(value[1], 10); break;
case "METER": result.meter = parseInt(value[1], 10); break;
case "VOLT": result.volt = parseInt(value[1], 10); break;
case "RGBW": result.rgbw = parseInt(value[1].substring(2, 4), 16); break;
}
idx++;
}
return result;
}
}