BLE Heart Rate Sample Program for HRM1017 which is using Nordic nRF51822 confirmed the connection of nRFToolbox on Android.
Dependencies: BLE_API mbed nRF51822 color_pixels
Fork of BLE_HTM_HRM1017 by
Revision 10:8a67578c3ef0, committed 2016-08-22
- Comitter:
- YoshinoTaro
- Date:
- Mon Aug 22 06:12:27 2016 +0000
- Parent:
- 9:554af3c63d0c
- Child:
- 11:d32f4f43161d
- Commit message:
- BLE Heart Rate Sample Program for HRM1017 which is using Nordic nRF51822 confirmed the connection of nRFToolbox on Android.
Changed in this revision
TMP102.lib | Show diff for this revision Revisions of this file |
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/TMP102.lib Fri Nov 27 12:31:49 2015 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/chris/code/TMP102/#694792b93731
--- a/main.cpp Fri Nov 27 12:31:49 2015 +0000 +++ b/main.cpp Mon Aug 22 06:12:27 2016 +0000 @@ -1,60 +1,72 @@ #include "mbed.h" -#include "TMP102.h" #include "BLE.h" +#include <math.h> -#define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console; - * it will have an impact on code-size and power consumption. */ -#if NEED_CONSOLE_OUTPUT -Serial pc(USBTX, USBRX); -#define DEBUG(...) { pc.printf(__VA_ARGS__); } +#define NEED_DEBUG 1 +#if NEED_DEBUG +#define DEBUG(...) { printf(__VA_ARGS__); } #else #define DEBUG(...) /* nothing */ -#endif /* #if NEED_CONSOLE_OUTPUT */ +#endif + -const static char DEVICE_NAME[] = "HRM1017_HTM"; +const static char DEVICE_NAME[] = "mbed HRM1017"; static volatile bool triggerSensorPolling = false; + BLEDevice ble; -TMP102 healthThemometer(I2C_SDA0, I2C_SCL0, 0x90); /* The TMP102 connected to our board */ -//TMP102 healthThemometer(I2C_SDA1, I2C_SCL1, 0x90); /* The TMP102 connected to our board */ + -/* LEDs for indication: */ -DigitalOut oneSecondLed(LED1); /* LED1 is toggled every second. */ -DigitalOut advertisingStateLed(LED2); /* LED2 is on when we are advertising, otherwise off. */ +/* Heart Rate Service */ +static uint8_t hrmCounter = 100; +static uint8_t bpm[2] = {0x00, hrmCounter}; +GattCharacteristic hrmChar(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR + ,bpm, sizeof(bpm) ,sizeof(bpm) + ,GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); +static uint8_t location = 0x05; /* Ear Lobe */ +GattCharacteristic hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR + ,(uint8_t *)&location ,sizeof(location) ,sizeof(location) + ,GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); +GattCharacteristic *hrmChars[] = {&hrmChar, &hrmLocation,}; +GattService hrmService(GattService::UUID_HEART_RATE_SERVICE + ,hrmChars ,sizeof(hrmChars)/sizeof(GattCharacteristic *)); -/* Health Thermometer Service */ -uint8_t thermTempPayload[5] = { 0, 0, 0, 0, 0 }; -GattCharacteristic tempChar (GattCharacteristic::UUID_TEMPERATURE_MEASUREMENT_CHAR, - thermTempPayload, 5, 5, - GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE); /* Battery Level Service */ -uint8_t batt = 100; /* Battery level */ -uint8_t read_batt = 0; /* Variable to hold battery level reads */ -GattCharacteristic battLevel ( GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, - (uint8_t *)batt, 1, 1, - GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); -GattCharacteristic *htmChars[] = {&tempChar, }; -GattCharacteristic *battChars[] = {&battLevel, }; -GattService htmService(GattService::UUID_HEALTH_THERMOMETER_SERVICE, htmChars, - sizeof(htmChars) / sizeof(GattCharacteristic *)); -GattService battService(GattService::UUID_BATTERY_SERVICE, battChars, - sizeof(battChars) / sizeof(GattCharacteristic *)); +static uint8_t batt = 100; +GattCharacteristic battLevel(GattCharacteristic::UUID_BATTERY_LEVEL_CHAR + ,(uint8_t *)&batt ,sizeof(batt) ,sizeof(batt) + ,GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); +GattCharacteristic *battChars[] = {&battLevel,}; +GattService battService(GattService::UUID_BATTERY_SERVICE + ,battChars ,sizeof(battChars)/sizeof(GattCharacteristic *)); + + -uint16_t uuid16_list[] = {GattService::UUID_HEALTH_THERMOMETER_SERVICE, - GattService::UUID_BATTERY_SERVICE}; +/* Device Information service */ +static uint8_t deviceName[] = {'H', 'R', 'M', '1', '0', '1', '7'}; +GattCharacteristic deviceManufacturer(GattCharacteristic::UUID_MANUFACTURER_NAME_STRING_CHAR + ,(uint8_t *)deviceName ,sizeof(deviceName) ,sizeof(deviceName) + ,GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); +GattCharacteristic *devInfoChars[] = {&deviceManufacturer,}; +GattService deviceInformationService(GattService::UUID_DEVICE_INFORMATION_SERVICE + ,devInfoChars ,sizeof(devInfoChars)/sizeof(GattCharacteristic *)); -uint32_t quick_ieee11073_from_float(float temperature); + +static uint16_t uuid16_list[] = { + GattService::UUID_HEART_RATE_SERVICE + ,GattService::UUID_BATTERY_SERVICE + ,GattService::UUID_DEVICE_INFORMATION_SERVICE + }; + + void updateServiceValues(void); - static Gap::ConnectionParams_t connectionParams; -void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) // Mod +void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { - advertisingStateLed = 1; - DEBUG("Disconnected handle %u, reason %u\r\n", params->handle, params->reason); DEBUG("Restarting the advertising process\r\n"); ble.gap().startAdvertising(); @@ -62,8 +74,6 @@ void onConnectionCallback(const Gap::ConnectionCallbackParams_t *params) //Mod { - advertisingStateLed = 0; - DEBUG("connected. Got handle %u\r\n", params->handle); connectionParams.slaveLatency = 1; @@ -74,23 +84,11 @@ void periodicCallback(void) { - oneSecondLed = !oneSecondLed; /* Do blinky on LED1 while we're waiting for BLE events */ - - /* Note that the periodicCallback() executes in interrupt context, so it is safer to do - * heavy-weight sensor polling from the main thread. */ triggerSensorPolling = true; } -/**************************************************************************/ -/*! - @brief Program entry point -*/ -/**************************************************************************/ int main(void) -{ - - /* Setup blinky led */ - oneSecondLed = 1; +{ Ticker ticker; ticker.attach(periodicCallback, 1); @@ -105,16 +103,16 @@ /* setup advertising */ ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t*)uuid16_list, sizeof(uuid16_list)); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_THERMOMETER); + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.gap().setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */ ble.gap().startAdvertising(); - advertisingStateLed = 1; DEBUG("Start Advertising\r\n"); - ble.gattServer().addService(htmService); + ble.gattServer().addService(hrmService); ble.gattServer().addService(battService); + ble.gattServer().addService(deviceInformationService); DEBUG("Add Service\r\n"); while (true) { @@ -127,34 +125,14 @@ } } -/**************************************************************************/ -/*! - @brief Ticker callback to switch advertisingStateLed state -*/ -/**************************************************************************/ void updateServiceValues(void) { - /* Decrement the battery level. */ - batt <=50 ? batt=100 : batt--; - - /* Update the temperature. Note that we need to convert to an ieee11073 format float. */ - float temperature = healthThemometer.read(); - DEBUG("temp:%f\r\n", temperature); - uint32_t temp_ieee11073 = quick_ieee11073_from_float(temperature); - memcpy(thermTempPayload+1, &temp_ieee11073, 4); - ble.gattServer().write(tempChar.getValueAttribute().getHandle(), thermTempPayload, sizeof(thermTempPayload)); //Mod - ble.gattServer().write(battLevel.getValueAttribute().getHandle(), (uint8_t *)&batt, sizeof(batt)); //Mod -} + /* Decrement the battery level. */ + batt <= 50 ? batt = 100 : batt--; + ble.gattServer().write(battLevel.getValueAttribute().getHandle(), (uint8_t *)&batt, sizeof(batt)); -/** - * @brief A very quick conversion between a float temperature and 11073-20601 FLOAT-Type. - * @param temperature The temperature as a float. - * @return The temperature in 11073-20601 FLOAT-Type format. - */ -uint32_t quick_ieee11073_from_float(float temperature) -{ - uint8_t exponent = 0xFF; //exponent is -1 - uint32_t mantissa = (uint32_t)(temperature*10); - - return ( ((uint32_t)exponent) << 24) | mantissa; + /* Randomize the heart rate. */ + hrmCounter = (rand() % 150) + 30; + bpm[1] = hrmCounter; + ble.gattServer().write(hrmChar.getValueAttribute().getHandle(), bpm, sizeof(bpm)); }