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DS3231 Precision RTC Module

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Product Description

This Real Time Clock (RTC) is the most precise you can get in a small, low power package.

Communication is via i2c. The default address is 0x57.

The DS3231 library is installable directly from the Arduino Library Manager.

2032 Coin cell battery NOT included


  • Dimension: 38mm* 22mm * 14mm
  • Weight: 8g
  • Working voltage: 3.3 - 5.5V
  • Clock chip: high-precision clock chip DS3231
  • Clock accuracy within range: 0-40°, accuracy 2ppm, about 1 minute in error
  • Programmable square-wave output
  • Real-time clock, it can generate seconds, minutes, hours, day, date, month and year, and provide time until 2100, and with leap year compensation.
  • Internal chip temperature sensor comes with an accuracy of ± 3°
  • Memory chip: AT24C32 (storage capacity of 32K)

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