I read on some hardware vendor’s site they had an RTC circuit that could be programmed to set a pin “low” (I think) at a scheduled time–such that the pin could be wired to the RPi to wake it up at a specific time. I’m wondering if the OSPi RTC has the same capability… so I could program the RPi to wake up, say every hour, do some processing (at boot), then set the next wake-up time and shut itself down. This would help with saving power, especially in the Pool Water Monitor I’m building.