With ALARM command you can read / set an alarm the Carberry RTCC. When the alarm time is reached by RTCC then an EVNT RTCC is triggered
RTCC ALARM <hh:mm>|OFF
ALARM accepts three parameters as:
| Param | Description | Range |
| hh | hour | 00 - 23 |
| mm | minutes | 00 - 59 |
ALARM command returns current alarm set if no parameters are provided.
Reading current alarm status
RTCC ALARM OFF OK RTCC ALARM 14:48 OK
Adjusting RTCC alarm
RTCC ALARM 17:46 OK RTCC ALARM OFF OK
When alarm is triggered an event EVNT RTCC is transmitted to Raspberry. If system is in sleep then RTCC alarm will wake-up it and no event can be read because of power-up delay. When the system it awakened by RTCC alarm then it will begin a shutdown procedure unless from Raspberry will not arrive IGNITION KEEPALIVE commands to keep system awake