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Support for Environmental Service (temperature, pressure and humidity characteristics)

master
Xabi Crespo 2015-09-24 16:39:24 +02:00 committed by xcrespo
parent 8694f1ade2
commit f0f42d110b
3 changed files with 107 additions and 1 deletions
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5
ble/GattCharacteristic.h
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@ -57,6 +57,7 @@ public:
UUID_HEART_RATE_MEASUREMENT_CHAR = 0x2A37,
UUID_HID_CONTROL_POINT_CHAR = 0x2A4C,
UUID_HID_INFORMATION_CHAR = 0x2A4A,
UUID_HUMIDITY_CHAR = 0x2A6F,
UUID_IEEE_REGULATORY_CERTIFICATION_DATA_LIST_CHAR = 0x2A2A,
UUID_INTERMEDIATE_CUFF_PRESSURE_CHAR = 0x2A36,
UUID_INTERMEDIATE_TEMPERATURE_CHAR = 0x2A1E,
@ -67,6 +68,7 @@ public:
UUID_UNREAD_ALERT_CHAR = 0x2A45,
UUID_NEW_ALERT_CHAR = 0x2A46,
UUID_PNP_ID_CHAR = 0x2A50,
UUID_PRESSURE_CHAR = 0x2A6D,
UUID_PROTOCOL_MODE_CHAR = 0x2A4E,
UUID_RECORD_ACCESS_CONTROL_POINT_CHAR = 0x2A52,
UUID_REFERENCE_TIME_INFORMATION_CHAR = 0x2A14,
@ -81,6 +83,7 @@ public:
UUID_SUPPORTED_NEW_ALERT_CATEGORY_CHAR = 0x2A47,
UUID_SUPPORTED_UNREAD_ALERT_CATEGORY_CHAR = 0x2A48,
UUID_SYSTEM_ID_CHAR = 0x2A23,
UUID_TEMPERATURE_CHAR = 0x2A6E,
UUID_TEMPERATURE_MEASUREMENT_CHAR = 0x2A1C,
UUID_TEMPERATURE_TYPE_CHAR = 0x2A1D,
UUID_TIME_ACCURACY_CHAR = 0x2A12,
@ -93,7 +96,7 @@ public:
UUID_CSC_FEATURE_CHAR = 0x2A5C,
UUID_CSC_MEASUREMENT_CHAR = 0x2A5B,
UUID_RSC_FEATURE_CHAR = 0x2A54,
UUID_RSC_MEASUREMENT_CHAR = 0x2A53,
UUID_RSC_MEASUREMENT_CHAR = 0x2A53
};
/**************************************************************************/

1
ble/GattService.h
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@ -29,6 +29,7 @@ public:
UUID_CURRENT_TIME_SERVICE = 0x1805,
UUID_CYCLING_SPEED_AND_CADENCE = 0x1816,
UUID_DEVICE_INFORMATION_SERVICE = 0x180A,
UUID_ENVIRONMENTAL_SERVICE = 0x181A,
UUID_GLUCOSE_SERVICE = 0x1808,
UUID_HEALTH_THERMOMETER_SERVICE = 0x1809,
UUID_HEART_RATE_SERVICE = 0x180D,

102
ble/services/EnvironmentalService.h Normal file
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@ -0,0 +1,102 @@
#ifndef __BLE_ENVIRONMENTAL_SERVICE_H__
#define __BLE_ENVIRONMENTAL_SERVICE_H__
#include "ble/BLE.h"
/**
* @class EnvironmentalService
* @brief BLE Environmental Service. This service provides the location of the thermometer and the temperature. <br>
* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.environmental_sensing.xml <br>
* Temperature: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature.xml <br>
* Humidity: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.humidity.xml <br>
* Pressure: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.pressure.xml
*/
class EnvironmentalService {
public:
/**
* @brief EnvironmentalService constructor.
* @param ble Reference to BLE device.
* @param temperature_en Enable this characteristic.
* @param humidity_en Enable this characteristic.
* @param pressure_en Enable this characteristic.
*/
EnvironmentalService(BLE &_ble,
bool temperature_en = false,
bool humidity_en = false,
bool pressure_en = false) :
ble(_ble),
temperatureCharacteristic(GattCharacteristic::UUID_TEMPERATURE_CHAR,
(uint8_t *) &temperature,
(temperature_en) ? 2 : 0, // minLength
(temperature_en) ? 2 : 0, // maxLength
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ),
humidityCharacteristic(GattCharacteristic::UUID_HUMIDITY_CHAR,
(uint8_t *) &humidity,
(humidity_en) ? 2 : 0, // minLength
(humidity_en) ? 2 : 0, // maxLength
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ),
pressureCharacteristic(GattCharacteristic::UUID_PRESSURE_CHAR,
(uint8_t *) &pressure,
(pressure_en) ? 4 : 0, // minLength
(pressure_en) ? 4 : 0, // maxLength
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ)
{
static bool serviceAdded = false; /* We should only ever need to add the information service once. */
if (serviceAdded) {
return;
}
GattCharacteristic *charTable[] = { &humidityCharacteristic,
&pressureCharacteristic,
&temperatureCharacteristic };
GattService environmentalService(GattService::UUID_ENVIRONMENTAL_SERVICE, charTable,
sizeof(charTable) / sizeof(GattCharacteristic *));
ble.gattServer().addService(environmentalService);
serviceAdded = true;
}
/**
* @brief Update humidity characteristic.
* @param newHumidityVal New humidity measurement.
*/
void updateHumidity(uint16_t newHumidityVal)
{
humidity = (uint32_t) (newHumidityVal*100);
ble.gattServer().write(humidityCharacteristic.getValueHandle(), (uint8_t *) &humidity, 2);
}
/**
* @brief Update pressure characteristic.
* @param newPressureVal New pressure measurement.
*/
void updatePressure(uint32_t newPressureVal)
{
pressure = (uint32_t) (newPressureVal*10);
ble.gattServer().write(pressureCharacteristic.getValueHandle(), (uint8_t *) &pressure, 4);
}
/**
* @brief Update temperature characteristic.
* @param newTemperatureVal New temperature measurement.
*/
void updateTemperature(float newTemperatureVal)
{
temperature = (int16_t) (newTemperatureVal*100);
ble.gattServer().write(temperatureCharacteristic.getValueHandle(), (uint8_t *) &temperature, 2);
}
private:
BLE &ble;
int16_t temperature;
GattCharacteristic temperatureCharacteristic;
uint16_t humidity;
GattCharacteristic humidityCharacteristic;
uint32_t pressure;
GattCharacteristic pressureCharacteristic;
};
#endif /* #ifndef __BLE_ENVIRONMENTAL_SERVICE_H__*/