This is the RTC Real Time Clock Module, this little breakout that uses the DS1307 to keep track of the current year, month, day as well as the current time. The module includes a rechargeable Lithium coin cell battery that will run the RTC without an external 5V power supply for around 1 year. This module also comes with 24C32 32K I2C EEPROM which brings a more stable way to read and write. The DS1307 RTC is accessed via the I2C protocol.
- Voltage: 5VDC
- Size: 27mm x 28mm x 8.4mm