Alex Cordonnier / BLE_API

High level Bluetooth Low Energy API and radio abstraction layer

Fork of BLE_API by Bluetooth Low Energy

ble/services/EnvironmentalService.h@1134:d540a48f650d, 2016-04-06 (annotated)

Committer:
vcoubard
Date:
Wed Apr 06 19:13:52 2016 +0100
Revision:
1134:d540a48f650d
Parent:
1131:692ddf04fc42 
Synchronized with git rev d363d7ee

Author: Rohit Grover

Merge branch 'develop'

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vcoubard 1131:692ddf04fc42 1 /* mbed Microcontroller Library
vcoubard 1131:692ddf04fc42 2 * Copyright (c) 2006-2013 ARM Limited
vcoubard 1131:692ddf04fc42 3 *
vcoubard 1131:692ddf04fc42 4 * Licensed under the Apache License, Version 2.0 (the "License");
vcoubard 1131:692ddf04fc42 5 * you may not use this file except in compliance with the License.
vcoubard 1131:692ddf04fc42 6 * You may obtain a copy of the License at
vcoubard 1131:692ddf04fc42 7 *
vcoubard 1131:692ddf04fc42 8 * http://www.apache.org/licenses/LICENSE-2.0
vcoubard 1131:692ddf04fc42 9 *
vcoubard 1131:692ddf04fc42 10 * Unless required by applicable law or agreed to in writing, software
vcoubard 1131:692ddf04fc42 11 * distributed under the License is distributed on an "AS IS" BASIS,
vcoubard 1131:692ddf04fc42 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vcoubard 1131:692ddf04fc42 13 * See the License for the specific language governing permissions and
vcoubard 1131:692ddf04fc42 14 * limitations under the License.
vcoubard 1131:692ddf04fc42 15 */
vcoubard 1131:692ddf04fc42 16
vcoubard 1131:692ddf04fc42 17 #ifndef __BLE_ENVIRONMENTAL_SERVICE_H__
vcoubard 1131:692ddf04fc42 18 #define __BLE_ENVIRONMENTAL_SERVICE_H__
vcoubard 1131:692ddf04fc42 19
vcoubard 1131:692ddf04fc42 20 #include "ble/BLE.h"
vcoubard 1131:692ddf04fc42 21
vcoubard 1131:692ddf04fc42 22 /**
vcoubard 1131:692ddf04fc42 23 * @class EnvironmentalService
vcoubard 1134:d540a48f650d 24 * @brief BLE Environmental Service. This service provides temperature, humidity and pressure measurement.
vcoubard 1134:d540a48f650d 25 * Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.environmental_sensing.xml
vcoubard 1134:d540a48f650d 26 * Temperature: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature.xml
vcoubard 1134:d540a48f650d 27 * Humidity: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.humidity.xml
vcoubard 1131:692ddf04fc42 28 * Pressure: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.pressure.xml
vcoubard 1131:692ddf04fc42 29 */
vcoubard 1131:692ddf04fc42 30 class EnvironmentalService {
vcoubard 1131:692ddf04fc42 31 public:
vcoubard 1131:692ddf04fc42 32 typedef int16_t TemperatureType_t;
vcoubard 1131:692ddf04fc42 33 typedef uint16_t HumidityType_t;
vcoubard 1131:692ddf04fc42 34 typedef uint32_t PressureType_t;
vcoubard 1131:692ddf04fc42 35
vcoubard 1131:692ddf04fc42 36 /**
vcoubard 1131:692ddf04fc42 37 * @brief EnvironmentalService constructor.
vcoubard 1131:692ddf04fc42 38 * @param ble Reference to BLE device.
vcoubard 1131:692ddf04fc42 39 * @param temperature_en Enable this characteristic.
vcoubard 1131:692ddf04fc42 40 * @param humidity_en Enable this characteristic.
vcoubard 1131:692ddf04fc42 41 * @param pressure_en Enable this characteristic.
vcoubard 1131:692ddf04fc42 42 */
vcoubard 1131:692ddf04fc42 43 EnvironmentalService(BLE& _ble) :
vcoubard 1131:692ddf04fc42 44 ble(_ble),
vcoubard 1131:692ddf04fc42 45 temperatureCharacteristic(GattCharacteristic::UUID_TEMPERATURE_CHAR, &temperature),
vcoubard 1131:692ddf04fc42 46 humidityCharacteristic(GattCharacteristic::UUID_HUMIDITY_CHAR, &humidity),
vcoubard 1131:692ddf04fc42 47 pressureCharacteristic(GattCharacteristic::UUID_PRESSURE_CHAR, &pressure)
vcoubard 1131:692ddf04fc42 48 {
vcoubard 1131:692ddf04fc42 49 static bool serviceAdded = false; /* We should only ever need to add the information service once. */
vcoubard 1131:692ddf04fc42 50 if (serviceAdded) {
vcoubard 1131:692ddf04fc42 51 return;
vcoubard 1131:692ddf04fc42 52 }
vcoubard 1131:692ddf04fc42 53
vcoubard 1131:692ddf04fc42 54 GattCharacteristic *charTable[] = { &humidityCharacteristic,
vcoubard 1131:692ddf04fc42 55 &pressureCharacteristic,
vcoubard 1131:692ddf04fc42 56 &temperatureCharacteristic };
vcoubard 1131:692ddf04fc42 57
vcoubard 1131:692ddf04fc42 58 GattService environmentalService(GattService::UUID_ENVIRONMENTAL_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
vcoubard 1131:692ddf04fc42 59
vcoubard 1131:692ddf04fc42 60 ble.gattServer().addService(environmentalService);
vcoubard 1131:692ddf04fc42 61 serviceAdded = true;
vcoubard 1131:692ddf04fc42 62 }
vcoubard 1131:692ddf04fc42 63
vcoubard 1131:692ddf04fc42 64 /**
vcoubard 1131:692ddf04fc42 65 * @brief Update humidity characteristic.
vcoubard 1131:692ddf04fc42 66 * @param newHumidityVal New humidity measurement.
vcoubard 1131:692ddf04fc42 67 */
vcoubard 1131:692ddf04fc42 68 void updateHumidity(HumidityType_t newHumidityVal)
vcoubard 1131:692ddf04fc42 69 {
vcoubard 1131:692ddf04fc42 70 humidity = (HumidityType_t) (newHumidityVal * 100);
vcoubard 1131:692ddf04fc42 71 ble.gattServer().write(humidityCharacteristic.getValueHandle(), (uint8_t *) &humidity, sizeof(HumidityType_t));
vcoubard 1131:692ddf04fc42 72 }
vcoubard 1131:692ddf04fc42 73
vcoubard 1131:692ddf04fc42 74 /**
vcoubard 1131:692ddf04fc42 75 * @brief Update pressure characteristic.
vcoubard 1131:692ddf04fc42 76 * @param newPressureVal New pressure measurement.
vcoubard 1131:692ddf04fc42 77 */
vcoubard 1131:692ddf04fc42 78 void updatePressure(PressureType_t newPressureVal)
vcoubard 1131:692ddf04fc42 79 {
vcoubard 1131:692ddf04fc42 80 pressure = (PressureType_t) (newPressureVal * 10);
vcoubard 1131:692ddf04fc42 81 ble.gattServer().write(pressureCharacteristic.getValueHandle(), (uint8_t *) &pressure, sizeof(PressureType_t));
vcoubard 1131:692ddf04fc42 82 }
vcoubard 1131:692ddf04fc42 83
vcoubard 1131:692ddf04fc42 84 /**
vcoubard 1131:692ddf04fc42 85 * @brief Update temperature characteristic.
vcoubard 1131:692ddf04fc42 86 * @param newTemperatureVal New temperature measurement.
vcoubard 1131:692ddf04fc42 87 */
vcoubard 1131:692ddf04fc42 88 void updateTemperature(float newTemperatureVal)
vcoubard 1131:692ddf04fc42 89 {
vcoubard 1131:692ddf04fc42 90 temperature = (TemperatureType_t) (newTemperatureVal * 100);
vcoubard 1131:692ddf04fc42 91 ble.gattServer().write(temperatureCharacteristic.getValueHandle(), (uint8_t *) &temperature, sizeof(TemperatureType_t));
vcoubard 1131:692ddf04fc42 92 }
vcoubard 1131:692ddf04fc42 93
vcoubard 1131:692ddf04fc42 94 private:
vcoubard 1131:692ddf04fc42 95 BLE& ble;
vcoubard 1131:692ddf04fc42 96
vcoubard 1131:692ddf04fc42 97 TemperatureType_t temperature;
vcoubard 1131:692ddf04fc42 98 HumidityType_t humidity;
vcoubard 1131:692ddf04fc42 99 PressureType_t pressure;
vcoubard 1131:692ddf04fc42 100
vcoubard 1131:692ddf04fc42 101 ReadOnlyGattCharacteristic<TemperatureType_t> temperatureCharacteristic;
vcoubard 1131:692ddf04fc42 102 ReadOnlyGattCharacteristic<HumidityType_t> humidityCharacteristic;
vcoubard 1131:692ddf04fc42 103 ReadOnlyGattCharacteristic<PressureType_t> pressureCharacteristic;
vcoubard 1131:692ddf04fc42 104 };
vcoubard 1131:692ddf04fc42 105
rgrover1 906:8ddab3271c2f 106 #endif /* #ifndef __BLE_ENVIRONMENTAL_SERVICE_H__*/