Real-Time clock module (DS3231)
- Module itself can adapt 3.3V and 5V systems
- Low-power and high accuracy
- Within -40 ° C to +85 ° C temperature range, timing accuracy is maintained at ± 5ppm (± 0.432 sec / day)
- Provide battery backup for continuous timing.
- Complete clock functions include seconds, minutes, hours, day, date, month and year timing, and provide valid for the whole XXI century.
- Two calendar alarm.
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