Arduino 101 CurieBLE Button LED

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1/*
2
3 * Copyright (c) 2016 Intel Corporation.  All rights reserved.
4
5 * See the bottom of this file for the license terms.
6
7 */
8
9#include <CurieBLE.h>
10
11const int ledPin = 13; // set ledPin to on-board LED
12
13const int buttonPin = 4; // set buttonPin to digital pin 4
14
15BLEPeripheral blePeripheral; // create peripheral instance
16
17BLEService ledService("19B10010-E8F2-537E-4F6C-D104768A1214"); // create service
18
19// create switch characteristic and allow remote device to read and write
20
21BLECharCharacteristic ledCharacteristic("19B10011-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite);
22// create button characteristic and allow remote device to get notifications
23
24BLECharCharacteristic buttonCharacteristic("19B10012-E8F2-537E-4F6C-D104768A1214", BLERead | BLENotify); // allows remote device to get notifications
25
26void setup() {
27
28  Serial.begin(9600);
29
30  pinMode(ledPin, OUTPUT); // use the LED on pin 13 as an output
31
32  pinMode(buttonPin, INPUT); // use button pin 4 as an input
33
34  // set the local name peripheral advertises
35
36  blePeripheral.setLocalName("ButtonLED");
37
38  // set the UUID for the service this peripheral advertises:
39
40  blePeripheral.setAdvertisedServiceUuid(ledService.uuid());
41
42  // add service and characteristics
43
44  blePeripheral.addAttribute(ledService);
45
46  blePeripheral.addAttribute(ledCharacteristic);
47
48  blePeripheral.addAttribute(buttonCharacteristic);
49
50  ledCharacteristic.setValue(0);
51
52  buttonCharacteristic.setValue(0);
53
54  // advertise the service
55
56  blePeripheral.begin();
57
58  Serial.println("Bluetooth® device active, waiting for connections...");
59}
60
61void loop() {
62
63  // poll peripheral
64
65  blePeripheral.poll();
66
67  // read the current button pin state
68
69  char buttonValue = digitalRead(buttonPin);
70
71  // has the value changed since the last read
72
73  boolean buttonChanged = (buttonCharacteristic.value() != buttonValue);
74
75  if (buttonChanged) {
76
77    // button state changed, update characteristics
78
79    ledCharacteristic.setValue(buttonValue);
80
81    buttonCharacteristic.setValue(buttonValue);
82
83  }
84
85  if (ledCharacteristic.written() || buttonChanged) {
86
87    // update LED, either central has written to characteristic or button state has changed
88
89    if (ledCharacteristic.value()) {
90
91      Serial.println("LED on");
92
93      digitalWrite(ledPin, HIGH);
94
95    } else {
96
97      Serial.println("LED off");
98
99      digitalWrite(ledPin, LOW);
100
101    }
102
103  }
104}
105
106/*
107
108  Copyright (c) 2016 Intel Corporation. All rights reserved.
109
110  This library is free software; you can redistribute it and/or
111
112  modify it under the terms of the GNU Lesser General Public
113
114  License as published by the Free Software Foundation; either
115
116  version 2.1 of the License, or (at your option) any later version.
117
118  This library is distributed in the hope that it will be useful,
119
120  but WITHOUT ANY WARRANTY; without even the implied warranty of
121
122  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
123
124  Lesser General Public License for more details.
125
126  You should have received a copy of the GNU Lesser General Public
127
128  License along with this library; if not, write to the Free Software
129
130  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-
131
132  1301 USA
133
134*/