5pcs RTC Real Timer Clock DS1307 Module Board With I2C Bus Interface

Feature This is a real time clock RTC based on IC DS1307 that allows your microcontroller project to keep track of time even if it is reprogrammed or if the power is lost Use for data logging clock timers and alarms The DS1307 can be easily connected to the with I2C bus interface Package includes 5 x Real Time Clock Module with battery