Adafruit DS1307 Real Time Clock Assembled Breakout Board

This battery-backed real-time clock (RTC) ensures your microcontroller project accurately tracks time, even amid power loss or reprogramming. Ideal for datalogging, clock-building, timers, and alarms, it features the renowned DS1307 chip.

Specifications:

• Operates optimally with 5V power and compatible with 3.3V logic.
• Connect seamlessly to an Arduino using our RTC library or to a Raspberry Pi.
• Includes PCB and header for easy breadboard integration.
• Built-in mounting holes enhance stability and convenience.
• Keeps time accurately for over 5 years with a CR1220 coin cell battery (not included).

The DS1307 may gain or lose up to 2 seconds daily; for high-precision needs, consider the DS3231 alternative. Explore our guide for comprehensive wiring diagrams and library codes.