Ds1307 clock Realtime With Battery

A Real-time clock with battery to stay on time even when your project is off or while you reprogram your microcontroller.
The breakout is perfect for projects depending on time, timer, alarm, etc. The DS1307 is the most popular RTC clock, and works perfectly with 5V microcontrollers such as Arduino.
This breakout board delivered as a kit and requires some welding operations that should not exceed the 15 minutes.
contents: Card and connector (the connectors are not yet soldered).
Can fit on any breadboard. You can also use wires.
Sample code and library for Arduino (AfaFruit, see tutorial section).
Two fixing holes
An included CR1220 battery should be sufficient to maintain the time for 5 years and more.