ESS2.h

00001 /* ARM University Program Microcontroller Library
00002  * 
00003  * Environmental Sensing Service
00004  *
00005  * This software is distributed under an "AS IS" BASIS,
00006  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00007  */
00008 
00009 #ifndef __BLE_ENVIRONMENTAL_SENSING_SERVICE2_H__
00010 #define __BLE_ENVIRONMENTAL_SENSING_SERVICE2_H__
00011 
00012 #include <mbed.h>
00013 #include "blecommon.h"
00014 #include "Gap.h"
00015 #include "GattServer.h"
00016 #include "BLEDeviceInstanceBase.h"
00017 //#include "BLEDevice.h"
00018 
00019 /* Environmental Sensing Service */
00020 /* Service:  https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.environmental_sensing.xml */
00021 /* True wind direction characteristic: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.true_wind_direction.xml*/
00022 /* Pressure characteristic: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.pressure.xml */
00023 
00024 
00025 class EnvironmentalSensingService2 {
00026 
00027 public:
00028     /**
00029      * Constructor.
00030      *
00031      * param[in] _ble
00032      *               Reference to the underlying BLEDevice.
00033          * param[in] True Wind Direction in degrees (16-bit unsigned, 2 decimals). Wind coming from: 0=North, 90=East, 180=South and 270=West.
00034      *               initial value for the temperature
00035          * param[in] pressure in Pascals (32-bit unsigned, 1 decimal).
00036          *                           initial value for the pressure value.
00037      */
00038     EnvironmentalSensingService2(BLEDevice &_ble, uint16_t winddirection, uint32_t pressure) :
00039         ble(_ble),
00040 
00041 
00042                 
00043                 winddirectionchar(0x2A71, (uint8_t *)&winddirection,
00044                 sizeof(uint16_t), sizeof(uint16_t),
00045                 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
00046                 
00047                 pressurechar(GattCharacteristic::UUID_PRESSURE_CHAR, (uint8_t *)&pressure,
00048                 sizeof(uint32_t), sizeof(uint32_t),
00049                 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
00050                 
00051                 {   // Setup Service
00052                     
00053 
00054                 GattCharacteristic *charTable[] = {  &winddirectionchar, &pressurechar };
00055 
00056                 GattService      EnvironmentalService2(0x181A, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
00057 
00058         ble.gattServer().addService(EnvironmentalService2);
00059     }
00060 
00061 
00062         /* Set a new 16-bit value for the wind direction measurement.  */
00063     void updateWinddirection(uint16_t winddirection) {
00064         ble.gattServer().write(winddirectionchar.getValueAttribute().getHandle(), (uint8_t *)&winddirection, sizeof(uint16_t));
00065     }       
00066     /* Set a new 32-bit value for the pressure measurement.  */
00067     void updatePressure(uint32_t pressure) {
00068         ble.gattServer().write(pressurechar.getValueAttribute().getHandle(), (uint8_t *)&pressure, sizeof(uint32_t));
00069     }
00070 
00071         
00072 private:
00073     BLEDevice                   &ble;
00074     GattCharacteristic          winddirectionchar;
00075     GattCharacteristic          pressurechar;
00076 };
00077 
00078 #endif /* #ifndef __BLE_ENVIRONMENTAL_SENSING_SERVICE2_H__*/
00079 
00080 
00081 // *******************************ARM University Program Copyright © ARM Ltd 2015*************************************//