1 /* Copyright 2017-present Samsung Electronics Co., Ltd. and other contributors
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 /* Copyright (C) 2015 Sandeep Mistry sandeep.mistry@gmail.com
18 * Permission is hereby granted, free of charge, to any person obtaining a copy
19 * of this software and associated documentation files (the "Software"), to deal
20 * in the Software without restriction, including without limitation the rights
21 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
22 * copies of the Software, and to permit persons to whom the Software is
23 * furnished to do so, subject to the following conditions:
25 * The above copyright notice and this permission notice shall be included in
26 * all copies or substantial portions of the Software.
28 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
29 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
30 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
31 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
32 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
33 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
37 var ble = require('ble');
39 var BlenoPrimaryService = ble.PrimaryService;
40 var BlenoCharacteristic = ble.Characteristic;
42 var util = require('util');
44 var EchoCharacteristic = function() {
45 BlenoCharacteristic.call(this, {
47 properties: ['read', 'write', 'notify'],
51 this._value = new Buffer(0);
52 this._updateValueCallback = null;
55 util.inherits(EchoCharacteristic, BlenoCharacteristic);
57 EchoCharacteristic.prototype.onReadRequest = function(offset, callback) {
58 console.log('EchoCharacteristic - onReadRequest: value = ' + this._value.toString('hex'));
60 callback(this.RESULT_SUCCESS, this._value);
63 EchoCharacteristic.prototype.onWriteRequest = function(data, offset, withoutResponse, callback) {
66 console.log('EchoCharacteristic - onWriteRequest: value = ' + this._value.toString('hex'));
68 if (this._updateValueCallback) {
69 console.log('EchoCharacteristic - onWriteRequest: notifying');
71 this._updateValueCallback(this._value);
74 callback(this.RESULT_SUCCESS);
77 EchoCharacteristic.prototype.onSubscribe = function(maxValueSize, updateValueCallback) {
78 console.log('EchoCharacteristic - onSubscribe');
80 this._updateValueCallback = updateValueCallback;
83 EchoCharacteristic.prototype.onUnsubscribe = function() {
84 console.log('EchoCharacteristic - onUnsubscribe');
86 this._updateValueCallback = null;
89 console.log('ble - echo');
91 ble.on('stateChange', function(state) {
92 console.log('on -> stateChange: ' + state);
94 if (state === 'poweredOn') {
95 ble.startAdvertising('iotjs_echo', ['ec00']);
97 ble.stopAdvertising();
101 ble.on('advertisingStart', function(error) {
102 console.log('on -> advertisingStart: ' + (error ? 'error ' + error : 'success'));
106 new BlenoPrimaryService({
109 new EchoCharacteristic()