Precision Real-Time Clock Module with DS3231 AT24C32 I2C EEPROM

Features:
● Two Time-of-Day Alarms.
● Register for Aging Trim.
● Digital Temp Sensor Output.
● DS 3231 RTC with 2032 Battery Holder.
● Programmable Square-Wave Output Signal.
● Battery-Backup Input for Continuous Timekeepig.
● Low Power Operation Extends Battery-Backup Run Time.
● Highly Accurate RTC Completely Manages All Timekeeping Functions.
● Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year, with Leap-Year Compensation Valid Up to 2100.
● Configurable I2C device Address for AT24C32 using SMD jumpers on PCB (A0, A1, A2).

Specification:
● Operating Voltage(DC): 2.7 ~ 5.5V
● Voltage Supply for RTC: 2.2 V ~ 5.5 V
● Accuracy: ±2ppm from 0°C to +40°C.
±3.5ppm from -40°C to +85°C.
● Battery Holder: 2032 Coin Battery.
● I2C interface: Fast (400kHz) I2C Interface.
● EEPROM: AT24C32 32Kbit Serial I2C.
● Time Format: HH: MM: SS (12/24 hr).
● Date Format: YY-MM-DD-dd.
● Operating Temperature Range: -40 to 85 °C
● Digital Temp Sensor Output: 10 bit, ±3°C Accuracy and 0.25C resolution.
● Dimensions: 38 x 22 x 14mm
● Weight: 8gm

Wiring instructions (with Arduino uno r3 for example):
SCL → A5
SDA → A4
VCC → 5V
GND → GND

Please allow 5% measuring deviation due to manual measurement.

Package Includes :
1 x Precision Real Time Clock Module DS3231 AT24C32 I2C (Battery not Included)