A new library today: DS3234
The DS3234 is an extremely accurate RTC according to Dallas/Maxim. This has also been my experience :)
So far I have only measured a drift of a few milliseconds over 24 hours. The DS1302 and DS1307 have been measured to have a drift of close to 1 minute over a 24 hour period.
The DS3234 is an extremely accurate RTC according to Dallas/Maxim. This has also been my experience :)
So far I have only measured a drift of a few milliseconds over 24 hours. The DS1302 and DS1307 have been measured to have a drift of close to 1 minute over a 24 hour period.