I want to have a coin cell operated rtc (say ds3231) to turn on Arduino and turn it off. The final goal is to have Arduino turn n and of a few times a day. I've investigated a number of sleep mode tactics and timers allready built in. Unfortunately they don't work that well since I have power consu…

Using an RTC and a relay to turn Arduino on and off

Paul_KD7HB September 29, 2017, 7:33pm 2

Can you give us a link to the RTC you are considering?

Paul