Skip to content

Instantly share code, notes, and snippets.

@micooke

micooke/BLE_GATT_Data.h

Created March 16, 2018 12:13
Show Gist options
  • Save micooke/f54a18908f8dbc1f9b9f4dcfabf43201 to your computer and use it in GitHub Desktop.
Save micooke/f54a18908f8dbc1f9b9f4dcfabf43201 to your computer and use it in GitHub Desktop.
Download ZIP
nRF51822 BLE Heartrate and Battery Service example
Raw
BLE_GATT_Data.h
// https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.heart_rate_measurement.xml
struct HeartRateMeasurement_Flags{ // default = 0x00
uint8_t HeartRateValueFormat : 1; // 0 = uint8_t
uint8_t SensorContactStatus : 2;
uint8_t EnergyExpendedStatus : 1;
uint8_t RRInterval : 1;
uint8_t Reserved : 3;
};
struct HeartRateMeasurementValue_8b{
HeartRateMeasurement_Flags Flags;
uint8_t Value;
};
// https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.battery_level.xml
struct BatteryLevelValue_8b{ // 0->100
uint8_t Value;
};
// https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.temperature_measurement.xml
struct TemperatureMeasurement_Flags{ // default = 0x00
uint8_t TemperatureUnits : 1; // 0 = Celcius
uint8_t TimeStamp : 1;
uint8_t TemperatureType : 1;
uint8_t Reserved : 5;
};
struct TemperatureMeasurementValue_float{ // 0->100
TemperatureMeasurement_Flags Flags;
float Value; // FLOAT = 32bit
};
union hrm_measurement{
HeartRateMeasurementValue_8b hrv;
uint8_t raw[2];
};
Raw
BLE_GATT_UUID.h
/* Source taken from mbed ble libraries :
* HeartRateService.h, GattService.h and GattCharacteristic.h
*
* 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.
*/
enum {
LOCATION_OTHER = 0, /*!< Other location. */
LOCATION_CHEST, /*!< Chest. */
LOCATION_WRIST, /*!< Wrist. */
LOCATION_FINGER, /*!< Finger. */
LOCATION_HAND, /*!< Hand. */
LOCATION_EAR_LOBE, /*!< Earlobe. */
LOCATION_FOOT, /*!< Foot. */
};
enum {
UUID_ALERT_NOTIFICATION_SERVICE = 0x1811,
UUID_BATTERY_SERVICE = 0x180F,
UUID_BLOOD_PRESSURE_SERVICE = 0x1810,
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,
UUID_HUMAN_INTERFACE_DEVICE_SERVICE = 0x1812,
UUID_IMMEDIATE_ALERT_SERVICE = 0x1802,
UUID_LINK_LOSS_SERVICE = 0x1803,
UUID_NEXT_DST_CHANGE_SERVICE = 0x1807,
UUID_PHONE_ALERT_STATUS_SERVICE = 0x180E,
UUID_REFERENCE_TIME_UPDATE_SERVICE = 0x1806,
UUID_RUNNING_SPEED_AND_CADENCE = 0x1814,
UUID_SCAN_PARAMETERS_SERVICE = 0x1813,
UUID_TX_POWER_SERVICE = 0x1804
};
enum {
UUID_BATTERY_LEVEL_STATE_CHAR = 0x2A1B,
UUID_BATTERY_POWER_STATE_CHAR = 0x2A1A,
UUID_REMOVABLE_CHAR = 0x2A3A,
UUID_SERVICE_REQUIRED_CHAR = 0x2A3B,
UUID_ALERT_CATEGORY_ID_CHAR = 0x2A43,
UUID_ALERT_CATEGORY_ID_BIT_MASK_CHAR = 0x2A42,
UUID_ALERT_LEVEL_CHAR = 0x2A06,
UUID_ALERT_NOTIFICATION_CONTROL_POINT_CHAR = 0x2A44,
UUID_ALERT_STATUS_CHAR = 0x2A3F,
UUID_BATTERY_LEVEL_CHAR = 0x2A19,
UUID_BLOOD_PRESSURE_FEATURE_CHAR = 0x2A49,
UUID_BLOOD_PRESSURE_MEASUREMENT_CHAR = 0x2A35,
UUID_BODY_SENSOR_LOCATION_CHAR = 0x2A38,
UUID_BOOT_KEYBOARD_INPUT_REPORT_CHAR = 0x2A22,
UUID_BOOT_KEYBOARD_OUTPUT_REPORT_CHAR = 0x2A32,
UUID_BOOT_MOUSE_INPUT_REPORT_CHAR = 0x2A33,
UUID_CURRENT_TIME_CHAR = 0x2A2B,
UUID_DATE_TIME_CHAR = 0x2A08,
UUID_DAY_DATE_TIME_CHAR = 0x2A0A,
UUID_DAY_OF_WEEK_CHAR = 0x2A09,
UUID_DST_OFFSET_CHAR = 0x2A0D,
UUID_EXACT_TIME_256_CHAR = 0x2A0C,
UUID_FIRMWARE_REVISION_STRING_CHAR = 0x2A26,
UUID_GLUCOSE_FEATURE_CHAR = 0x2A51,
UUID_GLUCOSE_MEASUREMENT_CHAR = 0x2A18,
UUID_GLUCOSE_MEASUREMENT_CONTEXT_CHAR = 0x2A34,
UUID_HARDWARE_REVISION_STRING_CHAR = 0x2A27,
UUID_HEART_RATE_CONTROL_POINT_CHAR = 0x2A39,
UUID_HEART_RATE_MEASUREMENT_CHAR = 0x2A37,
UUID_HID_CONTROL_POINT_CHAR = 0x2A4C,
UUID_HID_INFORMATION_CHAR = 0x2A4A,
UUID_IEEE_REGULATORY_CERTIFICATION_DATA_LIST_CHAR = 0x2A2A,
UUID_INTERMEDIATE_CUFF_PRESSURE_CHAR = 0x2A36,
UUID_INTERMEDIATE_TEMPERATURE_CHAR = 0x2A1E,
UUID_LOCAL_TIME_INFORMATION_CHAR = 0x2A0F,
UUID_MANUFACTURER_NAME_STRING_CHAR = 0x2A29,
UUID_MEASUREMENT_INTERVAL_CHAR = 0x2A21,
UUID_MODEL_NUMBER_STRING_CHAR = 0x2A24,
UUID_UNREAD_ALERT_CHAR = 0x2A45,
UUID_NEW_ALERT_CHAR = 0x2A46,
UUID_PNP_ID_CHAR = 0x2A50,
UUID_PROTOCOL_MODE_CHAR = 0x2A4E,
UUID_RECORD_ACCESS_CONTROL_POINT_CHAR = 0x2A52,
UUID_REFERENCE_TIME_INFORMATION_CHAR = 0x2A14,
UUID_REPORT_CHAR = 0x2A4D,
UUID_REPORT_MAP_CHAR = 0x2A4B,
UUID_RINGER_CONTROL_POINT_CHAR = 0x2A40,
UUID_RINGER_SETTING_CHAR = 0x2A41,
UUID_SCAN_INTERVAL_WINDOW_CHAR = 0x2A4F,
UUID_SCAN_REFRESH_CHAR = 0x2A31,
UUID_SERIAL_NUMBER_STRING_CHAR = 0x2A25,
UUID_SOFTWARE_REVISION_STRING_CHAR = 0x2A28,
UUID_SUPPORTED_NEW_ALERT_CATEGORY_CHAR = 0x2A47,
UUID_SUPPORTED_UNREAD_ALERT_CATEGORY_CHAR = 0x2A48,
UUID_SYSTEM_ID_CHAR = 0x2A23,
UUID_TEMPERATURE_MEASUREMENT_CHAR = 0x2A1C,
UUID_TEMPERATURE_TYPE_CHAR = 0x2A1D,
UUID_TIME_ACCURACY_CHAR = 0x2A12,
UUID_TIME_SOURCE_CHAR = 0x2A13,
UUID_TIME_UPDATE_CONTROL_POINT_CHAR = 0x2A16,
UUID_TIME_UPDATE_STATE_CHAR = 0x2A17,
UUID_TIME_WITH_DST_CHAR = 0x2A11,
UUID_TIME_ZONE_CHAR = 0x2A0E,
UUID_TX_POWER_LEVEL_CHAR = 0x2A07,
UUID_CSC_FEATURE_CHAR = 0x2A5C,
UUID_CSC_MEASUREMENT_CHAR = 0x2A5B,
UUID_RSC_FEATURE_CHAR = 0x2A54,
UUID_RSC_MEASUREMENT_CHAR = 0x2A53,
};
/**************************************************************************/
/*!
\brief Standard GATT characteristic presentation format unit types.
These unit types are used to describe what the raw numeric
data in a characteristic actually represents.
\note See https://developer.bluetooth.org/gatt/units/Pages/default.aspx
*/
/**************************************************************************/
enum {
BLE_GATT_UNIT_NONE = 0x2700, /**< No specified unit type */
BLE_GATT_UNIT_LENGTH_METRE = 0x2701, /**< Length, Metre */
BLE_GATT_UNIT_MASS_KILOGRAM = 0x2702, /**< Mass, Kilogram */
BLE_GATT_UNIT_TIME_SECOND = 0x2703, /**< Time, Second */
BLE_GATT_UNIT_ELECTRIC_CURRENT_AMPERE = 0x2704, /**< Electric Current, Ampere */
BLE_GATT_UNIT_THERMODYNAMIC_TEMPERATURE_KELVIN = 0x2705, /**< Thermodynamic Temperature, Kelvin */
BLE_GATT_UNIT_AMOUNT_OF_SUBSTANCE_MOLE = 0x2706, /**< Amount of Substance, Mole */
BLE_GATT_UNIT_LUMINOUS_INTENSITY_CANDELA = 0x2707, /**< Luminous Intensity, Candela */
BLE_GATT_UNIT_AREA_SQUARE_METRES = 0x2710, /**< Area, Square Metres */
BLE_GATT_UNIT_VOLUME_CUBIC_METRES = 0x2711, /**< Volume, Cubic Metres*/
BLE_GATT_UNIT_VELOCITY_METRES_PER_SECOND = 0x2712, /**< Velocity, Metres per Second*/
BLE_GATT_UNIT_ACCELERATION_METRES_PER_SECOND_SQUARED = 0x2713, /**< Acceleration, Metres per Second Squared */
BLE_GATT_UNIT_WAVENUMBER_RECIPROCAL_METRE = 0x2714, /**< Wave Number Reciprocal, Metre */
BLE_GATT_UNIT_DENSITY_KILOGRAM_PER_CUBIC_METRE = 0x2715, /**< Density, Kilogram per Cubic Metre */
BLE_GATT_UNIT_SURFACE_DENSITY_KILOGRAM_PER_SQUARE_METRE = 0x2716, /**< */
BLE_GATT_UNIT_SPECIFIC_VOLUME_CUBIC_METRE_PER_KILOGRAM = 0x2717, /**< */
BLE_GATT_UNIT_CURRENT_DENSITY_AMPERE_PER_SQUARE_METRE = 0x2718, /**< */
BLE_GATT_UNIT_MAGNETIC_FIELD_STRENGTH_AMPERE_PER_METRE = 0x2719, /**< Magnetic Field Strength, Ampere per Metre */
BLE_GATT_UNIT_AMOUNT_CONCENTRATION_MOLE_PER_CUBIC_METRE = 0x271A, /**< */
BLE_GATT_UNIT_MASS_CONCENTRATION_KILOGRAM_PER_CUBIC_METRE = 0x271B, /**< */
BLE_GATT_UNIT_LUMINANCE_CANDELA_PER_SQUARE_METRE = 0x271C, /**< */
BLE_GATT_UNIT_REFRACTIVE_INDEX = 0x271D, /**< */
BLE_GATT_UNIT_RELATIVE_PERMEABILITY = 0x271E, /**< */
BLE_GATT_UNIT_PLANE_ANGLE_RADIAN = 0x2720, /**< */
BLE_GATT_UNIT_SOLID_ANGLE_STERADIAN = 0x2721, /**< */
BLE_GATT_UNIT_FREQUENCY_HERTZ = 0x2722, /**< Frequency, Hertz */
BLE_GATT_UNIT_FORCE_NEWTON = 0x2723, /**< Force, Newton */
BLE_GATT_UNIT_PRESSURE_PASCAL = 0x2724, /**< Pressure, Pascal */
BLE_GATT_UNIT_ENERGY_JOULE = 0x2725, /**< Energy, Joule */
BLE_GATT_UNIT_POWER_WATT = 0x2726, /**< Power, Watt */
BLE_GATT_UNIT_ELECTRIC_CHARGE_COULOMB = 0x2727, /**< Electrical Charge, Coulomb */
BLE_GATT_UNIT_ELECTRIC_POTENTIAL_DIFFERENCE_VOLT = 0x2728, /**< Electrical Potential Difference, Voltage */
BLE_GATT_UNIT_CAPACITANCE_FARAD = 0x2729, /**< */
BLE_GATT_UNIT_ELECTRIC_RESISTANCE_OHM = 0x272A, /**< */
BLE_GATT_UNIT_ELECTRIC_CONDUCTANCE_SIEMENS = 0x272B, /**< */
BLE_GATT_UNIT_MAGNETIC_FLEX_WEBER = 0x272C, /**< */
BLE_GATT_UNIT_MAGNETIC_FLEX_DENSITY_TESLA = 0x272D, /**< */
BLE_GATT_UNIT_INDUCTANCE_HENRY = 0x272E, /**< */
BLE_GATT_UNIT_THERMODYNAMIC_TEMPERATURE_DEGREE_CELSIUS = 0x272F, /**< */
BLE_GATT_UNIT_LUMINOUS_FLUX_LUMEN = 0x2730, /**< */
BLE_GATT_UNIT_ILLUMINANCE_LUX = 0x2731, /**< */
BLE_GATT_UNIT_ACTIVITY_REFERRED_TO_A_RADIONUCLIDE_BECQUEREL = 0x2732, /**< */
BLE_GATT_UNIT_ABSORBED_DOSE_GRAY = 0x2733, /**< */
BLE_GATT_UNIT_DOSE_EQUIVALENT_SIEVERT = 0x2734, /**< */
BLE_GATT_UNIT_CATALYTIC_ACTIVITY_KATAL = 0x2735, /**< */
BLE_GATT_UNIT_DYNAMIC_VISCOSITY_PASCAL_SECOND = 0x2740, /**< */
BLE_GATT_UNIT_MOMENT_OF_FORCE_NEWTON_METRE = 0x2741, /**< */
BLE_GATT_UNIT_SURFACE_TENSION_NEWTON_PER_METRE = 0x2742, /**< */
BLE_GATT_UNIT_ANGULAR_VELOCITY_RADIAN_PER_SECOND = 0x2743, /**< */
BLE_GATT_UNIT_ANGULAR_ACCELERATION_RADIAN_PER_SECOND_SQUARED = 0x2744, /**< */
BLE_GATT_UNIT_HEAT_FLUX_DENSITY_WATT_PER_SQUARE_METRE = 0x2745, /**< */
BLE_GATT_UNIT_HEAT_CAPACITY_JOULE_PER_KELVIN = 0x2746, /**< */
BLE_GATT_UNIT_SPECIFIC_HEAT_CAPACITY_JOULE_PER_KILOGRAM_KELVIN = 0x2747, /**< */
BLE_GATT_UNIT_SPECIFIC_ENERGY_JOULE_PER_KILOGRAM = 0x2748, /**< */
BLE_GATT_UNIT_THERMAL_CONDUCTIVITY_WATT_PER_METRE_KELVIN = 0x2749, /**< */
BLE_GATT_UNIT_ENERGY_DENSITY_JOULE_PER_CUBIC_METRE = 0x274A, /**< */
BLE_GATT_UNIT_ELECTRIC_FIELD_STRENGTH_VOLT_PER_METRE = 0x274B, /**< */
BLE_GATT_UNIT_ELECTRIC_CHARGE_DENSITY_COULOMB_PER_CUBIC_METRE = 0x274C, /**< */
BLE_GATT_UNIT_SURFACE_CHARGE_DENSITY_COULOMB_PER_SQUARE_METRE = 0x274D, /**< */
BLE_GATT_UNIT_ELECTRIC_FLUX_DENSITY_COULOMB_PER_SQUARE_METRE = 0x274E, /**< */
BLE_GATT_UNIT_PERMITTIVITY_FARAD_PER_METRE = 0x274F, /**< */
BLE_GATT_UNIT_PERMEABILITY_HENRY_PER_METRE = 0x2750, /**< */
BLE_GATT_UNIT_MOLAR_ENERGY_JOULE_PER_MOLE = 0x2751, /**< */
BLE_GATT_UNIT_MOLAR_ENTROPY_JOULE_PER_MOLE_KELVIN = 0x2752, /**< */
BLE_GATT_UNIT_EXPOSURE_COULOMB_PER_KILOGRAM = 0x2753, /**< */
BLE_GATT_UNIT_ABSORBED_DOSE_RATE_GRAY_PER_SECOND = 0x2754, /**< */
BLE_GATT_UNIT_RADIANT_INTENSITY_WATT_PER_STERADIAN = 0x2755, /**< */
BLE_GATT_UNIT_RADIANCE_WATT_PER_SQUARE_METRE_STERADIAN = 0x2756, /**< */
BLE_GATT_UNIT_CATALYTIC_ACTIVITY_CONCENTRATION_KATAL_PER_CUBIC_METRE = 0x2757, /**< */
BLE_GATT_UNIT_TIME_MINUTE = 0x2760, /**< Time, Minute */
BLE_GATT_UNIT_TIME_HOUR = 0x2761, /**< Time, Hour */
BLE_GATT_UNIT_TIME_DAY = 0x2762, /**< Time, Day */
BLE_GATT_UNIT_PLANE_ANGLE_DEGREE = 0x2763, /**< */
BLE_GATT_UNIT_PLANE_ANGLE_MINUTE = 0x2764, /**< */
BLE_GATT_UNIT_PLANE_ANGLE_SECOND = 0x2765, /**< */
BLE_GATT_UNIT_AREA_HECTARE = 0x2766, /**< */
BLE_GATT_UNIT_VOLUME_LITRE = 0x2767, /**< */
BLE_GATT_UNIT_MASS_TONNE = 0x2768, /**< */
BLE_GATT_UNIT_PRESSURE_BAR = 0x2780, /**< Pressure, Bar */
BLE_GATT_UNIT_PRESSURE_MILLIMETRE_OF_MERCURY = 0x2781, /**< Pressure, Millimetre of Mercury */
BLE_GATT_UNIT_LENGTH_ANGSTROM = 0x2782, /**< */
BLE_GATT_UNIT_LENGTH_NAUTICAL_MILE = 0x2783, /**< */
BLE_GATT_UNIT_AREA_BARN = 0x2784, /**< */
BLE_GATT_UNIT_VELOCITY_KNOT = 0x2785, /**< */
BLE_GATT_UNIT_LOGARITHMIC_RADIO_QUANTITY_NEPER = 0x2786, /**< */
BLE_GATT_UNIT_LOGARITHMIC_RADIO_QUANTITY_BEL = 0x2787, /**< */
BLE_GATT_UNIT_LENGTH_YARD = 0x27A0, /**< Length, Yard */
BLE_GATT_UNIT_LENGTH_PARSEC = 0x27A1, /**< Length, Parsec */
BLE_GATT_UNIT_LENGTH_INCH = 0x27A2, /**< Length, Inch */
BLE_GATT_UNIT_LENGTH_FOOT = 0x27A3, /**< Length, Foot */
BLE_GATT_UNIT_LENGTH_MILE = 0x27A4, /**< Length, Mile */
BLE_GATT_UNIT_PRESSURE_POUND_FORCE_PER_SQUARE_INCH = 0x27A5, /**< */
BLE_GATT_UNIT_VELOCITY_KILOMETRE_PER_HOUR = 0x27A6, /**< Velocity, Kilometre per Hour */
BLE_GATT_UNIT_VELOCITY_MILE_PER_HOUR = 0x27A7, /**< Velocity, Mile per Hour */
BLE_GATT_UNIT_ANGULAR_VELOCITY_REVOLUTION_PER_MINUTE = 0x27A8, /**< Angular Velocity, Revolution per Minute */
BLE_GATT_UNIT_ENERGY_GRAM_CALORIE = 0x27A9, /**< Energy, Gram Calorie */
BLE_GATT_UNIT_ENERGY_KILOGRAM_CALORIE = 0x27AA, /**< Energy, Kilogram Calorie */
BLE_GATT_UNIT_ENERGY_KILOWATT_HOUR = 0x27AB, /**< Energy, Killowatt Hour */
BLE_GATT_UNIT_THERMODYNAMIC_TEMPERATURE_DEGREE_FAHRENHEIT = 0x27AC, /**< */
BLE_GATT_UNIT_PERCENTAGE = 0x27AD, /**< Percentage */
BLE_GATT_UNIT_PER_MILLE = 0x27AE, /**< */
BLE_GATT_UNIT_PERIOD_BEATS_PER_MINUTE = 0x27AF, /**< */
BLE_GATT_UNIT_ELECTRIC_CHARGE_AMPERE_HOURS = 0x27B0, /**< */
BLE_GATT_UNIT_MASS_DENSITY_MILLIGRAM_PER_DECILITRE = 0x27B1, /**< */
BLE_GATT_UNIT_MASS_DENSITY_MILLIMOLE_PER_LITRE = 0x27B2, /**< */
BLE_GATT_UNIT_TIME_YEAR = 0x27B3, /**< Time, Year */
BLE_GATT_UNIT_TIME_MONTH = 0x27B4, /**< Time, Month */
BLE_GATT_UNIT_CONCENTRATION_COUNT_PER_CUBIC_METRE = 0x27B5, /**< */
BLE_GATT_UNIT_IRRADIANCE_WATT_PER_SQUARE_METRE = 0x27B6 /**< */
};
/**************************************************************************/
/*!
\brief Standard GATT number types
\note See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.3.5.2
\note See http://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
*/
/**************************************************************************/
enum {
BLE_GATT_FORMAT_RFU = 0x00, /**< Reserved For Future Use. */
BLE_GATT_FORMAT_BOOLEAN = 0x01, /**< Boolean. */
BLE_GATT_FORMAT_2BIT = 0x02, /**< Unsigned 2-bit integer. */
BLE_GATT_FORMAT_NIBBLE = 0x03, /**< Unsigned 4-bit integer. */
BLE_GATT_FORMAT_UINT8 = 0x04, /**< Unsigned 8-bit integer. */
BLE_GATT_FORMAT_UINT12 = 0x05, /**< Unsigned 12-bit integer. */
BLE_GATT_FORMAT_UINT16 = 0x06, /**< Unsigned 16-bit integer. */
BLE_GATT_FORMAT_UINT24 = 0x07, /**< Unsigned 24-bit integer. */
BLE_GATT_FORMAT_UINT32 = 0x08, /**< Unsigned 32-bit integer. */
BLE_GATT_FORMAT_UINT48 = 0x09, /**< Unsigned 48-bit integer. */
BLE_GATT_FORMAT_UINT64 = 0x0A, /**< Unsigned 64-bit integer. */
BLE_GATT_FORMAT_UINT128 = 0x0B, /**< Unsigned 128-bit integer. */
BLE_GATT_FORMAT_SINT8 = 0x0C, /**< Signed 2-bit integer. */
BLE_GATT_FORMAT_SINT12 = 0x0D, /**< Signed 12-bit integer. */
BLE_GATT_FORMAT_SINT16 = 0x0E, /**< Signed 16-bit integer. */
BLE_GATT_FORMAT_SINT24 = 0x0F, /**< Signed 24-bit integer. */
BLE_GATT_FORMAT_SINT32 = 0x10, /**< Signed 32-bit integer. */
BLE_GATT_FORMAT_SINT48 = 0x11, /**< Signed 48-bit integer. */
BLE_GATT_FORMAT_SINT64 = 0x12, /**< Signed 64-bit integer. */
BLE_GATT_FORMAT_SINT128 = 0x13, /**< Signed 128-bit integer. */
BLE_GATT_FORMAT_FLOAT32 = 0x14, /**< IEEE-754 32-bit floating point. */
BLE_GATT_FORMAT_FLOAT64 = 0x15, /**< IEEE-754 64-bit floating point. */
BLE_GATT_FORMAT_SFLOAT = 0x16, /**< IEEE-11073 16-bit SFLOAT. */
BLE_GATT_FORMAT_FLOAT = 0x17, /**< IEEE-11073 32-bit FLOAT. */
BLE_GATT_FORMAT_DUINT16 = 0x18, /**< IEEE-20601 format. */
BLE_GATT_FORMAT_UTF8S = 0x19, /**< UTF-8 string. */
BLE_GATT_FORMAT_UTF16S = 0x1A, /**< UTF-16 string. */
BLE_GATT_FORMAT_STRUCT = 0x1B /**< Opaque Structure. */
};
Raw
nRF51822_BLE.ino
#include <Arduino.h>
#include "BLE_GATT_UUID.h"
#include "BLE_GATT_Data.h"
#include <SPI.h>
#include <BLEPeripheral.h>
hrm_measurement hrm_8b;
BLEPeripheral BLE = BLEPeripheral();
BLEService batt_Service = BLEService("180F"); // UUID_BATTERY_SERVICE
BLEUnsignedCharCharacteristic batt_BatteryLevel = BLEUnsignedCharCharacteristic("2A19", BLERead | BLENotify);
BLEDescriptor batt_Descriptor = BLEDescriptor("2902", "Battery Service");
BLEService hrm_Service = BLEService("180D"); // UUID_HEART_RATE_SERVICE
//BLEShortCharacteristic hrm_Measurement = BLEShortCharacteristic("2A37", BLERead | BLENotify);
BLECharacteristic hrm_Measurement = BLECharacteristic("2A37", BLERead | BLENotify, sizeof(hrm_8b));
BLEUnsignedCharCharacteristic hrm_BodySensorLocation = BLEUnsignedCharCharacteristic("2A38", BLERead | BLENotify);
BLEDescriptor hrm_Descriptor = BLEDescriptor("2902", "Heart Rate Service");
bool readFromSensor = false;
uint8_t last_BattReading = 50;
uint8_t last_HRMReading = 120;
uint32_t t = 0;
#define PIN_HEARTBEAT PIN_LED5
uint32_t tHB = 0;
bool HB_STATE = false;
void setup()
{
Serial.begin(9600);
Serial.println(F("BLE Sensor Peripheral"));
Serial.println(F("Setup"));
batt_BatteryLevel.setValue(50);
//hrm_Measurement.setValue(120);
hrm_8b.hrv.Value = 120;
hrm_Measurement.setValue(hrm_8b.raw, sizeof(hrm_8b));
hrm_BodySensorLocation.setValue(LOCATION_WRIST);
BLE.setLocalName("ID107HR");
BLE.setAdvertisedServiceUuid(batt_Service.uuid());
BLE.addAttribute(batt_Service);
BLE.addAttribute(batt_BatteryLevel);
BLE.addAttribute(batt_Descriptor);
BLE.setAdvertisedServiceUuid(hrm_Service.uuid());
BLE.addAttribute(hrm_Service);
BLE.addAttribute(hrm_Measurement);
BLE.addAttribute(hrm_BodySensorLocation);
BLE.addAttribute(hrm_Descriptor);
BLE.setEventHandler(BLEConnected, blePeripheralConnectHandler);
BLE.setEventHandler(BLEDisconnected, blePeripheralDisconnectHandler);
BLE.begin();
Serial.println(F("BLE.begin()"));
pinMode(PIN_HEARTBEAT, OUTPUT);
digitalWrite(PIN_HEARTBEAT, HIGH);
t = millis();
tHB = t;
}
void loop()
{
BLE.poll();
if (readFromSensor)
{
set_BatteryLevel();
set_HRM();
readFromSensor = false;
}
if (millis() - tHB > 1000)
{
digitalWrite(PIN_HEARTBEAT, HB_STATE);
HB_STATE = !HB_STATE;
tHB = millis();
}
timerHandler(); // read from the sensor every 1sec
delay(1); // needed?
}
void timerHandler()
{
if (millis() - t > 1000)
{
readFromSensor = true;
t = millis();
}
}
void set_BatteryLevel()
{
uint8_t reading = 20 + (uint8_t)random(5);
if (!isnan(reading) && significantChange(last_BattReading, reading, 1))
{
batt_BatteryLevel.setValue(reading);
Serial.print(F("Battery Level : ")); Serial.print(reading); Serial.println(F("%"));
last_BattReading = reading;
}
}
/*
void set_HRM()
{
uint8_t reading = 120 + (uint8_t)random(5);
if (!isnan(reading) && significantChange(last_HRMReading, reading, 1))
{
hrm_Measurement.setValue(reading);
Serial.print(F("Heart Rate : ")); Serial.print(reading); Serial.println(F("BPM"));
last_HRMReading = reading;
}
}
*/
void set_HRM()
{
hrm_8b.hrv.Value = 120 + (uint8_t)random(5);
if (!isnan(hrm_8b.hrv.Value) && significantChange(last_HRMReading, hrm_8b.hrv.Value, 1))
{
hrm_Measurement.setValue(hrm_8b.raw, sizeof(hrm_8b));
Serial.print(F("Heart Rate : ")); Serial.print(hrm_8b.hrv.Value); Serial.println(F("BPM"));
last_HRMReading = hrm_8b.hrv.Value;
}
}
boolean significantChange(uint8_t val1, uint8_t val2, uint8_t threshold)
{
return (abs(val1 - val2) >= threshold);
}
void blePeripheralConnectHandler(BLECentral& central)
{
Serial.print(F("Connected event, central: "));
Serial.println(central.address());
}
void blePeripheralDisconnectHandler(BLECentral& central)
{
Serial.print(F("Disconnected event, central: "));
Serial.println(central.address());
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment