SainSmart I2C RTC DS1307 AT24C32 Real Time Clock Module Board for Arduino AVR ARM PIC
This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. The DS1307 is the most popular RTC, and works best with 5V-based chips such as the Arduino.
- I2C interface
- DS1307 based RTC -LIR2032 battery (Battery not included)
- Backup by AT24C32 32Kbit
- DS1307,AT24C32 can work singleness
- Dimention: 28x25x8.4mm
- Weight:6.3g(include Battery)