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Irit Arkin 2015-12-02 17:08:13 +00:00
parent e15a022d1d
commit 2d708e9462
1 changed files with 24 additions and 24 deletions
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48
ble/services/HealthThermometerService.h
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@ -21,34 +21,34 @@
/**
* @class HealthThermometerService
* @brief BLE Health Thermometer Service. This service provides the location of the thermometer and the temperature. <br>
* Service: https://developer.bluetooth.org/gatt/profiles/Pages/ProfileViewer.aspx?u=org.bluetooth.profile.health_thermometer.xml <br>
* Temperature Measurement: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_measurement.xml <br>
* @brief BLE Health Thermometer Service. This service provides the location of the thermometer and the temperature.
* Service: https://developer.bluetooth.org/gatt/profiles/Pages/ProfileViewer.aspx?u=org.bluetooth.profile.health_thermometer.xml
* Temperature Measurement: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_measurement.xml
* Temperature Type: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_type.xml
*/
class HealthThermometerService {
public:
/**
* @enum Sensor Location
* @brief Location of sensor on the body
* @enum Sensor Location.
* @brief Location of sensor on the body.
*/
enum SensorLocation_t {
LOCATION_ARMPIT = 1, /*!< armpit */
LOCATION_BODY, /*!< body */
LOCATION_EAR, /*!< ear */
LOCATION_FINGER, /*!< finger */
LOCATION_ARMPIT = 1, /*!< Armpit. */
LOCATION_BODY, /*!< Body. */
LOCATION_EAR, /*!< Ear. */
LOCATION_FINGER, /*!< Finger. */
LOCATION_GI_TRACT, /*!< GI tract */
LOCATION_MOUTH, /*!< mouth */
LOCATION_RECTUM, /*!< rectum */
LOCATION_TOE, /*!< toe */
LOCATION_EAR_DRUM, /*!< ear drum */
LOCATION_MOUTH, /*!< Mouth. */
LOCATION_RECTUM, /*!< Rectum. */
LOCATION_TOE, /*!< Toe. */
LOCATION_EAR_DRUM, /*!< Eardrum. */
};
public:
/**
* @brief Add the Health Thermometer Service to an existing ble object, initialize with temperature and location.
* @param[ref] _ble reference to the BLE device
* @param[in] initialTemp initial value in celsius
* @brief Add the Health Thermometer Service to an existing BLE object, initialize with temperature and location.
* @param[ref] _ble Reference to the BLE device.
* @param[in] initialTemp Initial value in celsius.
* @param[in] _location
*/
HealthThermometerService(BLE &_ble, float initialTemp, uint8_t _location) :
@ -64,10 +64,10 @@ public:
}
/**
* @brief Update the temperature being broadcast
* @brief Update the temperature being broadcast.
*
* @param[in] temperature
* Floating point value of the temperature
* Floating point value of the temperature.
*
*/
void updateTemperature(float temperature) {
@ -80,14 +80,14 @@ public:
/**
* @brief Update the location.
* @param loc
* new location value.
* New location value.
*/
void updateLocation(SensorLocation_t loc) {
ble.gattServer().write(tempLocation.getValueHandle(), reinterpret_cast<uint8_t *>(&loc), sizeof(uint8_t));
}
private:
/* Private internal representation for the bytes used to work with the vaulue of the heart-rate characteristic. */
/* Private internal representation for the bytes used to work with the vaulue of the temperature characteristic. */
struct TemperatureValueBytes {
static const unsigned OFFSET_OF_FLAGS = 0;
static const unsigned OFFSET_OF_VALUE = OFFSET_OF_FLAGS + sizeof(uint8_t);
@ -101,7 +101,7 @@ private:
static const uint8_t TEMPERATURE_UNITS_FAHRENHEIT = 1;
TemperatureValueBytes(float initialTemperature) : bytes() {
/* assumption: temperature values are expressed in Celsius */
/* Assumption: temperature values are expressed in celsius */
bytes[OFFSET_OF_FLAGS] = (TEMPERATURE_UNITS_CELSIUS << TEMPERATURE_UNITS_FLAG_POS) |
(false << TIMESTAMP_FLAG_POS) |
(false << TEMPERATURE_TYPE_FLAG_POS);
@ -128,15 +128,15 @@ private:
* @return The temperature in 11073-20601 FLOAT-Type format.
*/
uint32_t quick_ieee11073_from_float(float temperature) {
uint8_t exponent = 0xFE; //exponent is -2
uint8_t exponent = 0xFE; //Exponent is -2
uint32_t mantissa = (uint32_t)(temperature * 100);
return (((uint32_t)exponent) << 24) | mantissa;
}
private:
/* First byte = 8-bit flags, Second field is a float holding the temperature value. */
/* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_measurement.xml */
/* First byte: 8-bit flags. Second field is a float holding the temperature value. */
/* See https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_measurement.xml */
uint8_t bytes[SIZEOF_VALUE_BYTES];
};