Q2 is supposed to turn off master uC and display and it seemed to accomplish it, judging by the current consumption. Where am I wrong?
I know I could have used RTC, but I really wanted to use hardware timers for something, and this project seemed to be a great candidate.
±10 sec would be alright, but I would rather have ±1 sec.
I wanted to use 3xAAA batteries.
Thanks again!
EDIT:
And I'm using the 3.3 volt pro mini bootloader.