Adafruit DS1307 Real Time Clock Assembled Breakout Board
| Brand | Adafruit |
| SKU: | 926 |
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 it has been used with 5V power and 3.3V logic successfully)
Works great with an Arduino using Adafruit's RTC library or with a Raspberry Pi (or similar single board linux computer)
- PCB & header are included
- Plugs into any breadboard, or you can use wires
- Two mounting holes
- Will keep time for 5 years or more
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 DS3231 precision RTC. If you do not need a DS1307, or you need a 3.3V-power/logic capable RTC please check out the affordable PCF8523 RTC breakout
Required Battery (Not Included)
Technical Details
Dimensions:
- Length: 25.8mm/1.02in
- Width: 21.7mm/0.85in
- Height: 5mm/0.2in
- Weight: 2.3g/0.09oz
- Mounting holes are 2.2mm(0.086in) diameter, 25mm(0.98in) apart
- This board/chip uses I2C 7-bit address 0x68