Description

• The RTC maintains seconds, minutes, hours, day, date, month, and year information.
• The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections of leap year.
• The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.
• Two programmable time-of-day alarms and a programmable square-wave output are provided.
• The underside of the board holds a 12mm coin-cell battery holder for battery backup.
• Operating Voltage: 3.3 – 5 .5 V
• Clock chip: High-precision clock chip DS3231
• Clock Accuracy: 0-40 ℃ range, the accuracy 2ppm, the error was about 1 minute
• Programmable square-wave output
• Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
• Chip temperature sensor comes with an accuracy of 3 ℃
• Memory chips: AT24C32 (storage capacity 32K)
• Battery type: LIR2032 (not included )
• IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
• Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
• Size: 38* 22*14mm (L*W*H)
• Weight: 8g
• Package Included: 1x RTC DS3231 I2C Real Time Clock Module

Features:

• -2ppm accuracy
• Two alarms
• SPI output
• Low power consumption
• Accurate calendar up to year 2100

Package included:

• 1 x RTC DS3231 I2C High Precision Real Time Clock Module For Arduino.