Rob Dobson / BLE_AlarmWatch

Auto updating alarm watch - accepts alarm settings from a BLE device like a Raspberry Pi and buzzes at the appropriate time - also displays binary time

Dependencies:   BLE_API mbed-src nRF51822 nrf51_rtc

WatchTimeService.h

Committer:
Bobty
Date:
2015-07-27
Revision:
3:a4b8d67de1b1
Child:
5:2682353a8c32

File content as of revision 3:a4b8d67de1b1:

// BLE Service for Watch Time
// To allow a watch device to be told the current time

#ifndef __BLE_WATCHTIME_SERVICE_H__
#define __BLE_WATCHTIME_SERVICE_H__

class WatchTimeService {
public:

    static const int WatchTime_BlockSize = 7;
    const static uint16_t WATCHTIME_SERVICE_UUID              = 0xFE32;
    const static uint16_t WATCHTIME_STATE_CHARACTERISTIC_UUID = 0xFE33;

    WatchTimeService(BLE &_ble, uint8_t* pInitialWatchTime) :
        ble(_ble), watchTimeVal(WATCHTIME_STATE_CHARACTERISTIC_UUID, pInitialWatchTime, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
    {
        GattCharacteristic *charTable[] = {&watchTimeVal};
        GattService watchTimeService(WatchTimeService::WATCHTIME_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
        ble.gattServer().addService(watchTimeService);
    }

    void sendWatchTime(uint8_t* pWatchTime) {
        ble.gattServer().write(watchTimeVal.getValueHandle(), pWatchTime, WatchTime_BlockSize);
    }

    GattAttribute::Handle_t getValueHandle()
    {
        return watchTimeVal.getValueHandle();
    }

private:
    BLE &ble;
    ReadWriteArrayGattCharacteristic<uint8_t, WatchTime_BlockSize> watchTimeVal;
};

#endif /* #ifndef __BLE_WATCHTIME_SERVICE_H__ */