This is 2nd breakout board that i design and made full by my own hands, yeah ! :D. I like to etch and drill by my hand instead to order to make PCB to PCB services (of course only for the simple and relatively wide track of the PCB :D) The first breakout board that i made is for most famous RTC, DS1307. But i more prefer to use DS3231 because it's more accurate. I tested it with my DIY arduino clock, in one month the DS1307 is slower about 3 minutes (compare with my notebook system clock) while the DS3231 is just slower about 20 second because it's use internal crystal for timekeeping instead of external crystal like DS1307.
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| Extremely accurate RTC! :D |
