Real Time Clock Module DS1307 (I2C Interface + EEPROM)

Real Time Clock Module สำหรับ Arduino - I2C Interface with onboard EEPROM

Based on DS1307, this is high-precision real-time clock module. Onboard AT24C02 EEPROM, you can record more alarms and events information. Onboard CR1220 battery holder, it is convenient to keep timing when main power to the device is interrupted.

Features:

• Compatibility: Arduino UNO R3 / Arduino Mega2560

• Operating voltage: 4.5 - 5.5VDC

• Operating Current: 3mA (max)

• Interface: standard I2C interface

• Timing accuracy: Timing accuracy: ± 10ppm

• SQW is programmable square wave output pin

• Arduino Library: RTC