Bluetooth Low Energy / BLE_API

High level Bluetooth Low Energy API and radio abstraction layer

Dependents:   BLE_ANCS_SDAPI BLE_temperature BLE_HeartRate BLE_ANCS_SDAPI_IRC ... more

Overview

The BLE_API is a high level abstraction for using Bluetooth Low Energy on multiple platforms. For details and examples using the BLE_API please see the BLE_API Summary Page. Or click on the API Documentation tab above.

Supported Services

Supported services can be found in the BLE_API/services folder.

ble/services/BatteryService.h@1208:65474dc93927, 2016-09-14 (annotated)

Committer:
Vincent Coubard
Date:
Wed Sep 14 14:18:00 2016 +0100
Revision:
1208:65474dc93927
Parent:
1183:1589830dbdb7 
Sync with 8d97fced5440d78c9557693b6d1632f1ab5d77b7



2016-09-01 08:21:37+01:00: Vincent Coubard

version v2.7.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vcoubard 1139:911c42364719 1 /* mbed Microcontroller Library
vcoubard 1139:911c42364719 2 * Copyright (c) 2006-2013 ARM Limited
vcoubard 1139:911c42364719 3 *
vcoubard 1139:911c42364719 4 * Licensed under the Apache License, Version 2.0 (the "License");
vcoubard 1139:911c42364719 5 * you may not use this file except in compliance with the License.
vcoubard 1139:911c42364719 6 * You may obtain a copy of the License at
vcoubard 1139:911c42364719 7 *
vcoubard 1139:911c42364719 8 * http://www.apache.org/licenses/LICENSE-2.0
vcoubard 1139:911c42364719 9 *
vcoubard 1139:911c42364719 10 * Unless required by applicable law or agreed to in writing, software
vcoubard 1139:911c42364719 11 * distributed under the License is distributed on an "AS IS" BASIS,
vcoubard 1139:911c42364719 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vcoubard 1139:911c42364719 13 * See the License for the specific language governing permissions and
vcoubard 1139:911c42364719 14 * limitations under the License.
vcoubard 1139:911c42364719 15 */
vcoubard 1139:911c42364719 16
vcoubard 1139:911c42364719 17 #ifndef __BLE_BATTERY_SERVICE_H__
vcoubard 1139:911c42364719 18 #define __BLE_BATTERY_SERVICE_H__
vcoubard 1139:911c42364719 19
vcoubard 1139:911c42364719 20 #include "ble/BLE.h"
vcoubard 1139:911c42364719 21
vcoubard 1139:911c42364719 22 /**
vcoubard 1139:911c42364719 23 * @class BatteryService
vcoubard 1139:911c42364719 24 * @brief BLE Battery Service. This service displays the battery level from 0% to 100%, represented as an 8bit number.
vcoubard 1139:911c42364719 25 * Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.battery_service.xml
vcoubard 1139:911c42364719 26 * Battery Level Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.battery_level.xml
vcoubard 1139:911c42364719 27 */
vcoubard 1139:911c42364719 28 class BatteryService {
vcoubard 1139:911c42364719 29 public:
vcoubard 1139:911c42364719 30 /**
vcoubard 1183:1589830dbdb7 31 * @param[in] _ble
vcoubard 1139:911c42364719 32 * BLE object for the underlying controller.
vcoubard 1139:911c42364719 33 * @param[in] level
vcoubard 1139:911c42364719 34 * 8bit batterly level. Usually used to represent percentage of batterly charge remaining.
vcoubard 1139:911c42364719 35 */
vcoubard 1139:911c42364719 36 BatteryService(BLE &_ble, uint8_t level = 100) :
vcoubard 1139:911c42364719 37 ble(_ble),
vcoubard 1139:911c42364719 38 batteryLevel(level),
vcoubard 1139:911c42364719 39 batteryLevelCharacteristic(GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, &batteryLevel, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) {
vcoubard 1139:911c42364719 40
vcoubard 1139:911c42364719 41 GattCharacteristic *charTable[] = {&batteryLevelCharacteristic};
vcoubard 1139:911c42364719 42 GattService batteryService(GattService::UUID_BATTERY_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
vcoubard 1139:911c42364719 43
vcoubard 1139:911c42364719 44 ble.addService(batteryService);
vcoubard 1139:911c42364719 45 }
vcoubard 1139:911c42364719 46
vcoubard 1139:911c42364719 47 /**
vcoubard 1183:1589830dbdb7 48 * @brief Update the battery level with a new value. Valid values lie between 0 and 100,
vcoubard 1139:911c42364719 49 * anything outside this range will be ignored.
vcoubard 1139:911c42364719 50 *
vcoubard 1139:911c42364719 51 * @param newLevel
vcoubard 1139:911c42364719 52 * Update to battery level.
vcoubard 1139:911c42364719 53 */
vcoubard 1139:911c42364719 54 void updateBatteryLevel(uint8_t newLevel) {
vcoubard 1139:911c42364719 55 batteryLevel = newLevel;
vcoubard 1139:911c42364719 56 ble.gattServer().write(batteryLevelCharacteristic.getValueHandle(), &batteryLevel, 1);
vcoubard 1139:911c42364719 57 }
vcoubard 1139:911c42364719 58
vcoubard 1139:911c42364719 59 protected:
vcoubard 1183:1589830dbdb7 60 /**
vcoubard 1183:1589830dbdb7 61 * A reference to the underlying BLE instance that this object is attached to.
vcoubard 1183:1589830dbdb7 62 * The services and characteristics will be registered in this BLE instance.
vcoubard 1183:1589830dbdb7 63 */
vcoubard 1139:911c42364719 64 BLE &ble;
vcoubard 1139:911c42364719 65
vcoubard 1183:1589830dbdb7 66 /**
vcoubard 1183:1589830dbdb7 67 * The current battery level represented as an integer from 0% to 100%.
vcoubard 1183:1589830dbdb7 68 */
vcoubard 1139:911c42364719 69 uint8_t batteryLevel;
vcoubard 1183:1589830dbdb7 70 /**
vcoubard 1183:1589830dbdb7 71 * A ReadOnlyGattCharacteristic that allows access to the peer device to the
vcoubard 1183:1589830dbdb7 72 * batteryLevel value through BLE.
vcoubard 1183:1589830dbdb7 73 */
vcoubard 1139:911c42364719 74 ReadOnlyGattCharacteristic<uint8_t> batteryLevelCharacteristic;
vcoubard 1139:911c42364719 75 };
vcoubard 1139:911c42364719 76
rgrover1 712:b04b5db36865 77 #endif /* #ifndef __BLE_BATTERY_SERVICE_H__*/