Module Tiny / Mini Real Time Clock (RTC) yang berbasis IC DS1307 dari Dallas.
Sudah termasuk 1 pcs batere LIR2032 (Rechargeable Lithium Battery), tegangan 3v, kapasitas 260mAh, secara teori bisa bertahan hingga 10 tahun.
**Spesifikasi DS1307 I2C real-time clock chip (RTC) accessed via the I2C protocol 24C32 32K I2C EEPROM memory Including Battery LIR2032 rechargeable lithium battery, and with the charging circuit Two wire I2C interface Hour : Minutes : Seconds AM/PM Day Month, Date - Year Size: 27x28x8.4mm Leap year compensation Accurate calendar up to year 2100 1Hz output pin 56 Bytes of Non-volatile memory available to user