wanjun chen / Nucleo_BLE_API_IOTIO

IOTIO

Fork of Nucleo_BLE_API by ST Americas mbed Team

services/BatteryService.h@2:584d5bedac75, 2016-10-29 (annotated)

Committer:
16038618
Date:
Sat Oct 29 14:16:12 2016 +0000
Revision:
2:584d5bedac75
Parent:
0:289fd2dae405 
IOTIO

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sjallouli 0:289fd2dae405 1 /* mbed Microcontroller Library
sjallouli 0:289fd2dae405 2 * Copyright (c) 2006-2013 ARM Limited
sjallouli 0:289fd2dae405 3 *
sjallouli 0:289fd2dae405 4 * Licensed under the Apache License, Version 2.0 (the "License");
sjallouli 0:289fd2dae405 5 * you may not use this file except in compliance with the License.
sjallouli 0:289fd2dae405 6 * You may obtain a copy of the License at
sjallouli 0:289fd2dae405 7 *
sjallouli 0:289fd2dae405 8 * http://www.apache.org/licenses/LICENSE-2.0
sjallouli 0:289fd2dae405 9 *
sjallouli 0:289fd2dae405 10 * Unless required by applicable law or agreed to in writing, software
sjallouli 0:289fd2dae405 11 * distributed under the License is distributed on an "AS IS" BASIS,
sjallouli 0:289fd2dae405 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sjallouli 0:289fd2dae405 13 * See the License for the specific language governing permissions and
sjallouli 0:289fd2dae405 14 * limitations under the License.
sjallouli 0:289fd2dae405 15 */
sjallouli 0:289fd2dae405 16
sjallouli 0:289fd2dae405 17 #ifndef __BLE_BATTERY_SERVICE_H__
sjallouli 0:289fd2dae405 18 #define __BLE_BATTERY_SERVICE_H__
sjallouli 0:289fd2dae405 19
sjallouli 0:289fd2dae405 20 #include "BLEDevice.h"
sjallouli 0:289fd2dae405 21
sjallouli 0:289fd2dae405 22 /* Battery Service */
sjallouli 0:289fd2dae405 23 /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.battery_service.xml */
sjallouli 0:289fd2dae405 24 /* Battery Level Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.battery_level.xml */
sjallouli 0:289fd2dae405 25 class BatteryService {
sjallouli 0:289fd2dae405 26 public:
sjallouli 0:289fd2dae405 27 BatteryService(BLEDevice &_ble, uint8_t level = 100) :
sjallouli 0:289fd2dae405 28 ble(_ble),
sjallouli 0:289fd2dae405 29 batteryLevel(level),
sjallouli 0:289fd2dae405 30 batteryLevelCharacteristic(GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, &batteryLevel, sizeof(batteryLevel), sizeof(batteryLevel),
sjallouli 0:289fd2dae405 31 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) {
sjallouli 0:289fd2dae405 32
sjallouli 0:289fd2dae405 33 static bool serviceAdded = false; /* We should only ever need to add the heart rate service once. */
sjallouli 0:289fd2dae405 34 if (serviceAdded) {
sjallouli 0:289fd2dae405 35 return;
sjallouli 0:289fd2dae405 36 }
sjallouli 0:289fd2dae405 37
sjallouli 0:289fd2dae405 38 GattCharacteristic *charTable[] = {&batteryLevelCharacteristic};
sjallouli 0:289fd2dae405 39 GattService batteryService(GattService::UUID_BATTERY_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
sjallouli 0:289fd2dae405 40
sjallouli 0:289fd2dae405 41 ble.addService(batteryService);
sjallouli 0:289fd2dae405 42 serviceAdded = true;
sjallouli 0:289fd2dae405 43 }
sjallouli 0:289fd2dae405 44
sjallouli 0:289fd2dae405 45 /**
sjallouli 0:289fd2dae405 46 * Update the battery level with a new value. Valid values range from
sjallouli 0:289fd2dae405 47 * 0..100. Anything outside this range will be ignored.
sjallouli 0:289fd2dae405 48 * @param newLevel New level.
sjallouli 0:289fd2dae405 49 */
sjallouli 0:289fd2dae405 50 void updateBatteryLevel(uint8_t newLevel) {
sjallouli 0:289fd2dae405 51 batteryLevel = newLevel;
sjallouli 0:289fd2dae405 52 ble.updateCharacteristicValue(batteryLevelCharacteristic.getValueAttribute().getHandle(), &batteryLevel, 1);
sjallouli 0:289fd2dae405 53 }
sjallouli 0:289fd2dae405 54
sjallouli 0:289fd2dae405 55 private:
sjallouli 0:289fd2dae405 56 BLEDevice &ble;
sjallouli 0:289fd2dae405 57 uint8_t batteryLevel;
sjallouli 0:289fd2dae405 58 GattCharacteristic batteryLevelCharacteristic;
sjallouli 0:289fd2dae405 59 };
sjallouli 0:289fd2dae405 60
sjallouli 0:289fd2dae405 61 #endif /* #ifndef __BLE_BATTERY_SERVICE_H__*/