DS1307 Real Time Clock breakout board kit
Qty | Discount |
---|---|
1-9 | $7.95 |
10-99 | $7.16 |
100+ | $6.36 |
Description
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 - but it requires 5V power to work (although we've used it with 5V power and 3.3V logic successfully)
- PCB & header are included
- Quick to assemble and use
- Plugs into any breadboard, or you can use wires
- We have example code and library for Arduino with a walkthrough on our documentation page
- Two mounting holes
- Will keep time for 5 years or more
Note: As of October 10th, 2015, this product no longer comes with a CR1220 coin cell battery. We recommend you purchase a coin cell battery to use with this product.
This breakout board is a kit and requires some light soldering which should only take about 15 minutes. Please check the documentation page for a list of parts and assembly instructions
The DS1307 is simple and inexpensive but not a high precision device. It may lose or gain up to 2 seconds a day. For a high-precision, temperature compensated alternative, please check out the ChronoDot.
Technical Details
EagleCAD PCB files and fritzing library are available in the product tutorial
Dimensions:
- Length: 24.21mm/0.95in
- Width: 30.44mm/1.2in
- Height: 5mm/0.2in
- Weight: 4g/0.14oz
- Mounting holes are 3.3mm(0.13in) diameter, 30mm(1.1in) apart
- This board/chip uses I2C 7-bit address 0x68
Learn
![](http://cdn-learn.adafruit.com/guides/images/000/000/196/medium640/ds1307rtc_LRG.jpg)
![](http://cdn-learn.adafruit.com/guides/images/000/000/103/medium640/3386-01.jpg)
![](http://cdn-learn.adafruit.com/guides/images/000/000/127/medium640/oled_clock_thumbnail.jpeg)
![](http://cdn-learn.adafruit.com/guides/images/000/000/325/medium640/ds1307rtc_LRG.jpg)
See our Distributors page for a complete list of distributors.