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:
- 6:4a12e0f03381
- Parent:
- 5:2682353a8c32
--- a/WatchTimeService.h Mon Dec 14 22:58:31 2015 +0000
+++ b/WatchTimeService.h Tue Mar 01 13:03:32 2016 +0000
@@ -4,38 +4,73 @@
#ifndef __BLE_WATCHTIME_SERVICE_H__
#define __BLE_WATCHTIME_SERVICE_H__
-//typedef void (*GetCurTimeCallbackFn)(uint8_t* curWatchTime)
-
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;
+ const static uint16_t ALARMTIME_STATE_CHARACTERISTIC_UUID = 0xFE34;
- WatchTimeService(BLE &ble, uint8_t* pInitialWatchTime) :
+ WatchTimeService(BLE &ble, uint8_t* pInitialWatchTime, uint8_t* pInitialAlarmTime) :
_ble(ble),
- _watchTimeVal(WATCHTIME_STATE_CHARACTERISTIC_UUID, pInitialWatchTime, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
+ _watchTimeVal(WATCHTIME_STATE_CHARACTERISTIC_UUID, pInitialWatchTime, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
+ _alarmTimeVal(ALARMTIME_STATE_CHARACTERISTIC_UUID, pInitialAlarmTime, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
{
- GattCharacteristic *charTable[] = {&_watchTimeVal};
+ GattCharacteristic *charTable[] = {&_watchTimeVal, &_alarmTimeVal};
GattService watchTimeService(WatchTimeService::WATCHTIME_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
_ble.gattServer().addService(watchTimeService);
}
- void writeWatchTime(uint8_t* pWatchTime)
+ void writeWatchTime(time_t timeToWrite)
{
- _ble.gattServer().write(_watchTimeVal.getValueHandle(), pWatchTime, WatchTime_BlockSize);
+ uint8_t watchTime[WatchTimeService::WatchTime_BlockSize];
+ unixTimeToWatchTime(timeToWrite, watchTime);
+ _ble.gattServer().write(_watchTimeVal.getValueHandle(), watchTime, WatchTime_BlockSize);
}
- GattAttribute::Handle_t getValueHandle()
+ GattAttribute::Handle_t getWatchTimeValueHandle()
{
return _watchTimeVal.getValueHandle();
}
+
+ GattAttribute::Handle_t getAlarmTimeValueHandle()
+ {
+ return _alarmTimeVal.getValueHandle();
+ }
+
+ static time_t watchTimeToUnixTime(const uint8_t* pWatchTime)
+ {
+ struct tm tminfo;
+ tminfo.tm_year = int(pWatchTime[0])*256 + pWatchTime[1] - 1900;
+ tminfo.tm_mon = pWatchTime[2] - 1;
+ tminfo.tm_mday = pWatchTime[3];
+ tminfo.tm_hour = pWatchTime[4];
+ tminfo.tm_min = pWatchTime[5];
+ tminfo.tm_sec = pWatchTime[6];
+ tminfo.tm_isdst = -1;
+ time_t timest = mktime(&tminfo);
+ return timest;
+ }
+
+ static void unixTimeToWatchTime(time_t unixTime, uint8_t* pWatchTime)
+ {
+ // Convert to localtime
+ struct tm * timeinfo;
+ timeinfo = localtime (&unixTime);
+ pWatchTime[0] = (timeinfo->tm_year + 1900) / 256;
+ pWatchTime[1] = (timeinfo->tm_year + 1900) % 256;
+ pWatchTime[2] = timeinfo->tm_mon + 1;
+ pWatchTime[3] = timeinfo->tm_mday;
+ pWatchTime[4] = timeinfo->tm_hour;
+ pWatchTime[5] = timeinfo->tm_min;
+ pWatchTime[6] = timeinfo->tm_sec;
+ }
private:
BLE &_ble;
ReadWriteArrayGattCharacteristic<uint8_t, WatchTime_BlockSize> _watchTimeVal;
-// GetCurTimeCallbackFn _pGetCurTimeCallback;
+ ReadWriteArrayGattCharacteristic<uint8_t, WatchTime_BlockSize> _alarmTimeVal;
};
#endif /* #ifndef __BLE_WATCHTIME_SERVICE_H__ */