BLE lib
Fork of Nucleo_BLE_API by
services/BatteryService.h
- Committer:
- vijaynvr
- Date:
- 2015-02-08
- Revision:
- 4:f1696bf0e6c6
- Parent:
- 0:289fd2dae405
File content as of revision 4:f1696bf0e6c6:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef __BLE_BATTERY_SERVICE_H__ #define __BLE_BATTERY_SERVICE_H__ #include "BLEDevice.h" /* Battery Service */ /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.battery_service.xml */ /* Battery Level Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.battery_level.xml */ class BatteryService { public: BatteryService(BLEDevice &_ble, uint8_t level = 100) : ble(_ble), batteryLevel(level), batteryLevelCharacteristic(GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, &batteryLevel, sizeof(batteryLevel), sizeof(batteryLevel), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) { static bool serviceAdded = false; /* We should only ever need to add the heart rate service once. */ if (serviceAdded) { return; } GattCharacteristic *charTable[] = {&batteryLevelCharacteristic}; GattService batteryService(GattService::UUID_BATTERY_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *)); ble.addService(batteryService); serviceAdded = true; } /** * Update the battery level with a new value. Valid values range from * 0..100. Anything outside this range will be ignored. * @param newLevel New level. */ void updateBatteryLevel(uint8_t newLevel) { batteryLevel = newLevel; ble.updateCharacteristicValue(batteryLevelCharacteristic.getValueAttribute().getHandle(), &batteryLevel, 1); } private: BLEDevice &ble; uint8_t batteryLevel; GattCharacteristic batteryLevelCharacteristic; }; #endif /* #ifndef __BLE_BATTERY_SERVICE_H__*/