node-red-contrib-tinkerforge/lib/devices.js

Node-RED nodes to access Tinkerforge sensors

/**
 * Copyright 2016 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.
 **/

"use strict";
var Tinkerforge = require('tinkerforge');
var bricklets = ('./bricklets');

var devices = {};

module.exports = {
	newDevice: function(host, port, id) {
	    var name = host + ":" + port;
	    var ipcon = new Tinkerforge.IPConnection();
	    var dev = {
	        host: host,
	        port: port,
	        ipcon: ipcon,
	        sensors: {}
	    };

	    devices[id] = dev;
	    ipcon.connect(host, port,
	        function(error) {
	            console.log('Error connecting to ' + name + ' : ' + error);
	        }
	    );

	    ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
	        function(connectReason) {
	            ipcon.enumerate();
	        });

	    ipcon.on(Tinkerforge.IPConnection.CALLBACK_ENUMERATE,
	        function(uid, connectedUid, position, hardwareVersion, firmwareVersion,
	            deviceIdentifier, enumerationType) {
	            var sensor = {
	                uid: uid,
	                type: deviceIdentifier,
	                typeName: bricklets[deviceIdentifier],
	                position: position,
	                hardwareVersion: hardwareVersion,
	                firmwareVersion: firmwareVersion
	            };
	            devices[id].sensors[sensor.uid] = sensor;
	        }
	    );
	},
	getDevices: function(){
		return devices;
	}
}