RTC Module DS1307

The RTC (Real-Time Clock) Module DS1307 is a low-power, full binary-coded decimal (BCD) clock/calendar with 56 bytes of NV SRAM. Address and data are transferred serially through an I²C bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap years. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator.

One of the key features of the DS1307 is its ability to operate on a backup power supply. This allows the clock to keep track of time even when the main power supply is interrupted. The module comes with a backup battery, which can last for years, ensuring the device retains the correct time even after extended power outages.

Features:

1. Low-Power Operation: The DS1307 consumes minimal power, making it ideal for battery-operated applications.
2. I²C Interface: The module uses an I²C serial interface, which allows easy communication with microcontrollers.
3. Automatic Leap Year Compensation: The DS1307 adjusts the end-of-month date for leap years, ensuring accurate timekeeping.
4. 24-Hour/12-Hour Format: The clock can be configured for 24-hour or 12-hour mode, with an AM/PM indicator in the latter.
5. Backup Power: The module includes a backup battery, maintaining time even during power loss.

Applications:

1. Timekeeping in Embedded Systems: Used in various embedded systems for maintaining accurate time and date.
2. Data Logging: Essential for data logging applications where timestamps are critical.
3. Home Automation: Utilized in home automation systems to schedule tasks based on time.
4. Security Systems: Ensures time-stamped logs of events and alarms in security systems.
5. Clocks and Watches: Integral to digital clocks and watches for precise timekeeping.

Pin Configuration:

• VCC: Main power supply pin (5V).
• GND: Ground pin.
• SCL: Serial Clock Line for I²C communication.
• SDA: Serial Data Line for I²C communication.
• BAT: Backup battery input.

Setup and Programming:

To interface the DS1307 with a microcontroller, connect the VCC and GND pins to the power supply. Connect the SCL and SDA pins to the corresponding I²C pins on the microcontroller. The module can be programmed using various microcontroller platforms like Arduino. Libraries are available that simplify communication with the DS1307, allowing easy reading and writing of time and date values.

Conclusion:

The DS1307 RTC module is a versatile and reliable component for any project requiring accurate timekeeping. Its low power consumption, backup power capability, and easy interfacing make it suitable for a wide range of applications, from simple clocks to complex data logging systems.

32.768KHz RTC Crystal Oscillator (Pack of 5)