Description
This DS1307-based Real Time Clock (RTC) module is a compact and reliable timekeeping solution for your microcontroller projects.
It uses the I2C interface to keep track of hours, minutes, seconds, day, date, month, and year, with automatic leap year compensation.
Ideal for Arduino, PIC, AVR, ARM, or any I2C compatible microcontroller, this board also features an AT24C32 EEPROM for additional user data storage, and battery backup support (CR2032 battery not included) to keep time during power loss.
- Clock Chip: DS1307 Real-Time Clock IC
- Interface: I2C (2-Wire)
- Timekeeping: Hours, Minutes, Seconds, AM/PM Format
- Date Tracking: Day, Date, Month, Year with Leap Year Correction
- 1Hz Output Pin: For timing or clock signal needs
- EEPROM: AT24C32 – 32K EEPROM via I2C
- User Memory: 56 bytes of non-volatile SRAM (built-in DS1307)
- Battery Backup Support: CR2032 compatible (battery not included)
- Operating Voltage: 5V
- Board Size: 2.9cm x 2.6cm (1.14in x 1.02in)
- Mounting Holes: For easy installation
What’s Included:
- 1 x DS1307 RTC Module with AT24C32 EEPROM (Battery Not Included)
Great For:
- Data logging projects
- Timestamping sensor data
- Alarms, timers, and reminders
- Clock displays with Arduino, ESP32, Raspberry Pi, STM32, etc.
Usage Tips:
- Connect to SDA/SCL lines of your microcontroller (usually A4/A5 on Arduino Uno)
- Use libraries like RTClib for easy integration
- Add a coin cell battery for uninterrupted timekeeping during power cuts
- Store custom settings or logs in the onboard EEPROM
