Package Included

- 1 x Highest precision clock module DS3231 for Raspberry Pi and Arduino

Description:

1. Operating Voltage: 3.3V and 5V (Module itself can adapt to a system without level conversion )
   two. characteristic:
   2.-40 ° C to + 85 ° C temperature range, timing accuracy is maintained at ± 5ppm (± 0.432 s / day )
   3. Continuous Timekeeping Battery Backup
   4. Low power consumption
   5. The device package, and functionally compatible with the DS3231
   6. The complete calendar clock functions include seconds, minutes, hours, day, date, month and year time, and provide valid until 2100 Leap Year Compensation
   7. The two -day alarms
   8.1Hz and 32.768kHz output
   9. Reset button to output and input jitter
   10. High-speed (400kHz) I2C serial bus
   11. + 2.3V to + 5.5V supply voltage
   12. The accuracy of ± 3 ° C digital temperature sensor
   13. Underwriters Laboratories (UL) certification
   14. Size : Size: 13mm(W) x 13mm(D) x 12mm (H)

Reference

• https://electropeak.com/learn/interfacing-ds3231-real-time-clock-rtc-module-with-arduino/