Adafruit DS1307 Real Time Clock breakout board kit

Experience seamless timekeeping with this upgraded RTC breakout, now as a fully assembled board for your convenience. The Assembled DS1307 Breakout retains all the essential components, chip, and compact size, delivering more value at a reduced cost.

This reliable battery-backed real-time clock ensures your microcontroller project accurately tracks time, even during reprogramming or power loss. Ideal for applications like datalogging, time stamping, clock projects, timers, and alarms, this versatile module can enhance various projects.

Key Features:

• Operates with 5V power; tested successfully with 5V power and 3.3V logic
• Includes PCB and header — quick to assemble and easy to use
• Compatible with any breadboard or wired connections
• Comes with Arduino example code and a comprehensive library on our documentation page
• Equipped with two mounting holes for secure installation
• Maintains time for five years or more

Please note, as of October 10th, 2015, the product does not include a CR1220 coin cell battery. Light soldering is required, typically taking about 15 minutes. For detailed assembly instructions, refer to our documentation page. While the DS1307 offers simplicity and affordability, it may lose or gain up to two seconds daily. For higher precision, consider exploring the ChronoDot.