manitou
Senior Member+
Here is a simple sketch to demonstrate teensy 3* RTC's alarm feature.
https://github.com/manitou48/teensy3/blob/master/rtc_alarm.ino
Maple and DUE RTC libs implement an alarm method with callback. It wouldn't take much to add a rtc_set_alarm(secs,callback) to the teensy3_clock_class, or not ...
https://github.com/manitou48/teensy3/blob/master/rtc_alarm.ino
Maple and DUE RTC libs implement an alarm method with callback. It wouldn't take much to add a rtc_set_alarm(secs,callback) to the teensy3_clock_class, or not ...