Real-time clock module with Dallas DS1302 Integration and with a battery socket to not reset the clock is compatible with Arduino and always gives the correct time.
- Dimensions: 43mm X 23mm
- Working Voltage: 2V – 3.3V – 5.5V
- Active Working Current (5V): 1.28mA
- Clock-holding Current (5V): 1uA
- Communication protocol: 3 pin serial