File content as of revision 0:088a3171bdab:

#include "mbed.h"
#include "BLE_API/ble/BLE.h"
#include "BLE_API/ble/services/HeartRateService.h"
#include "BLE_API/ble/services/BatteryService.h"
#include "BLE_API/ble/services/DeviceInformationService.h"

DigitalOut led(LED1, 1);   

Ticker update;
Ticker aliveness;

const static char     DEVICE_NAME[]        = "HELLO";
static const uint16_t uuid16_list[]        = {GattService::UUID_HEART_RATE_SERVICE,
                                              GattService::UUID_BATTERY_SERVICE,
                                              GattService::UUID_DEVICE_INFORMATION_SERVICE};

static volatile bool  triggerSensorPolling = false;

void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
{
    (void)params;
    BLE::Instance().gap().startAdvertising(); // restart advertising
}

void update_handler(void)
{
    triggerSensorPolling = true;
}

void aliveness_handler(void)
{
    led = !led;    
}

void onBleInitError(BLE &ble, ble_error_t error)
{
    (void)ble;
    (void)error;
   /* Initialization error handling should go here */
}

void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
{
    BLE&        ble   = params->ble;
    ble_error_t error = params->error;

    if (error != BLE_ERROR_NONE) {
        onBleInitError(ble, error);
        return;
    }


    ble.gap().onDisconnection(disconnectionCallback);

    /* Setup primary service. */
    uint8_t hrmCounter = 80; // init HRM to 60bps
    HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);

    /* Setup auxiliary service. */
    uint8_t batterylevel = 25;
    BatteryService battery(ble, batterylevel);
    DeviceInformationService deviceInfo(ble, "ST", "Nucleo", "SN1" );
    /* 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_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(1000); /* 1000ms */
    ble.gap().startAdvertising();

    // infinite loop
    while (true) {
        // check for trigger from periodicCallback()
        if (triggerSensorPolling && ble.getGapState().connected) {
            triggerSensorPolling = false;

            // Do blocking calls or whatever is necessary for sensor polling.
            // In our case, we simply update the HRM measurement.
            hrmCounter++;

            //  60 <= HRM bps <= 120
            if (hrmCounter == 120) {
                hrmCounter = 60;
            }

            // update bps
            hrService.updateHeartRate(hrmCounter);
        } else {
            ble.waitForEvent(); // low power wait for event
        }
    }
}

int main(void)
{
    update.attach(update_handler, 1);
    aliveness.attach(aliveness_handler,0.5);


    BLE::Instance().init(bleInitComplete);
}