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
Diff: WatchTimeService.h
- Revision:
- 3:a4b8d67de1b1
- Child:
- 5:2682353a8c32
diff -r 9090120e2656 -r a4b8d67de1b1 WatchTimeService.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WatchTimeService.h Mon Jul 27 15:25:59 2015 +0000 @@ -0,0 +1,36 @@ +// 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__ */