DS3231 Real Time Clock Module for Arduino

DS3231 Real Time Clock Module for Arduino

Description:

•  Dimension: 38mm x 22mm x 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 chips: AT24C32 (storage capacity of 32K)

•  I2C bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)

•  I2C other devices can be cascaded, 24C32 address can be modified by a short circuit A0/A1/A2, the default address is 0x57

•  With the battery, the clock is still working even when power is off. 

• LIR2032 Battery needed (not included) or CR2032 (not included) if the charging diode is removed.

Note: Battery not included.

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