I am trying to get RTC functionality with alarms for a low-power data logger. I have the Adafruit Feather M0 LoRa controller, and have tried both the Adalogger feather wing (PFC 8523 ) plus a DS3231 clock. When I use RTCZero with the example SimpleRTC sketch, the datetime resets to 0 after a power …

RTCZero configuration with Feather M0

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