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secs = 3600
rtc = mc.RTC()
In sleeping for 1 hour, it wakes up on average 108 seconds early, this seems to be a huge error and of course in 1 day this would be roughly 43 minutes a day assuming that the error is cumulative.
Can the clock be so inaccurate ??
Other than adding a multiplication factor into the sleep time code, is there away to calibrate / adjust the rtc ?