Jacob Rosenthal / BLE_API

Holla back

Fork of BLE_API by Bluetooth Low Energy

services/BatteryService.h@123:d2cdf4ebe524, 2014-10-10 (annotated)

Committer:
jakerosenthal@gmail.com
Date:
Fri Oct 10 17:32:22 2014 -0700
Branch:
2chains
Revision:
123:d2cdf4ebe524
Parent:
118:620d28e7a1ba 
first attempt at chaining onconnect and ondisconnect

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rohit Grover 118:620d28e7a1ba 1 /* mbed Microcontroller Library
Rohit Grover 118:620d28e7a1ba 2 * Copyright (c) 2006-2013 ARM Limited
Rohit Grover 118:620d28e7a1ba 3 *
Rohit Grover 118:620d28e7a1ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
Rohit Grover 118:620d28e7a1ba 5 * you may not use this file except in compliance with the License.
Rohit Grover 118:620d28e7a1ba 6 * You may obtain a copy of the License at
Rohit Grover 118:620d28e7a1ba 7 *
Rohit Grover 118:620d28e7a1ba 8 * http://www.apache.org/licenses/LICENSE-2.0
Rohit Grover 118:620d28e7a1ba 9 *
Rohit Grover 118:620d28e7a1ba 10 * Unless required by applicable law or agreed to in writing, software
Rohit Grover 118:620d28e7a1ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
Rohit Grover 118:620d28e7a1ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Rohit Grover 118:620d28e7a1ba 13 * See the License for the specific language governing permissions and
Rohit Grover 118:620d28e7a1ba 14 * limitations under the License.
Rohit Grover 118:620d28e7a1ba 15 */
Rohit Grover 118:620d28e7a1ba 16
Rohit Grover 118:620d28e7a1ba 17 #ifndef __BLE_BATTERY_SERVICE_H__
Rohit Grover 118:620d28e7a1ba 18 #define __BLE_BATTERY_SERVICE_H__
Rohit Grover 118:620d28e7a1ba 19
Rohit Grover 118:620d28e7a1ba 20 #include "BLEDevice.h"
Rohit Grover 118:620d28e7a1ba 21
Rohit Grover 118:620d28e7a1ba 22 /* Battery Service */
Rohit Grover 118:620d28e7a1ba 23 /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.battery_service.xml */
Rohit Grover 118:620d28e7a1ba 24 /* Battery Level Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.battery_level.xml */
Rohit Grover 118:620d28e7a1ba 25 class BatteryService {
Rohit Grover 118:620d28e7a1ba 26 public:
Rohit Grover 118:620d28e7a1ba 27 BatteryService(BLEDevice &_ble, uint8_t level = 100) :
Rohit Grover 118:620d28e7a1ba 28 ble(_ble),
Rohit Grover 118:620d28e7a1ba 29 batteryLevel(level),
Rohit Grover 118:620d28e7a1ba 30 batteryLevelCharacteristic(GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, &batteryLevel, sizeof(batteryLevel), sizeof(batteryLevel),
Rohit Grover 118:620d28e7a1ba 31 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) {
Rohit Grover 118:620d28e7a1ba 32
Rohit Grover 118:620d28e7a1ba 33 static bool serviceAdded = false; /* We should only ever need to add the heart rate service once. */
Rohit Grover 118:620d28e7a1ba 34 if (serviceAdded) {
Rohit Grover 118:620d28e7a1ba 35 return;
Rohit Grover 118:620d28e7a1ba 36 }
Rohit Grover 118:620d28e7a1ba 37
Rohit Grover 118:620d28e7a1ba 38 GattCharacteristic *charTable[] = {&batteryLevelCharacteristic};
Rohit Grover 118:620d28e7a1ba 39 GattService batteryService(GattService::UUID_BATTERY_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
Rohit Grover 118:620d28e7a1ba 40
Rohit Grover 118:620d28e7a1ba 41 ble.addService(batteryService);
Rohit Grover 118:620d28e7a1ba 42 serviceAdded = true;
Rohit Grover 118:620d28e7a1ba 43 }
Rohit Grover 118:620d28e7a1ba 44
Rohit Grover 118:620d28e7a1ba 45 /**
Rohit Grover 118:620d28e7a1ba 46 * Update the battery level with a new value. Valid values range from
Rohit Grover 118:620d28e7a1ba 47 * 0..100. Anything outside this range will be ignored.
Rohit Grover 118:620d28e7a1ba 48 * @param newLevel New level.
Rohit Grover 118:620d28e7a1ba 49 */
Rohit Grover 118:620d28e7a1ba 50 void updateBatteryLevel(uint8_t newLevel) {
Rohit Grover 118:620d28e7a1ba 51 batteryLevel = newLevel;
Rohit Grover 118:620d28e7a1ba 52 ble.updateCharacteristicValue(batteryLevelCharacteristic.getValueAttribute().getHandle(), &batteryLevel, 1);
Rohit Grover 118:620d28e7a1ba 53 }
Rohit Grover 118:620d28e7a1ba 54
Rohit Grover 118:620d28e7a1ba 55 private:
Rohit Grover 118:620d28e7a1ba 56 BLEDevice &ble;
Rohit Grover 118:620d28e7a1ba 57 uint8_t batteryLevel;
Rohit Grover 118:620d28e7a1ba 58 GattCharacteristic batteryLevelCharacteristic;
Rohit Grover 118:620d28e7a1ba 59 };
Rohit Grover 118:620d28e7a1ba 60
Rohit Grover 118:620d28e7a1ba 61 #endif /* #ifndef __BLE_BATTERY_SERVICE_H__*/