Feature

●Watch accuracy: 0-40 range, accuracy is 2ppm, error is about 1 minute
●Calendar alarm clock in 2
●Programmable square-wave output
●Real-time clock generator provides effective for seconds, minutes, hours, day, date, month, year timing and 2100 leap year compensation


Description

Module Parameters:
1. Size: 38mm (L) * 22mm (W) * 14mm (H)
3. Operating voltage: 3.3 to 5 0.5 V
4. Clock chip: High precision clock chip
Precision: 0 - 40 range, accuracy of 2 ppm, error of about 1 minute.
2 6. Calendar alarm clock.
7. Programmable square-wave output
8. Real-time clock generator, provide seconds, minute, hour, day, date, month, year timing and valid up to 2100 leap year correction
9. Chip temperature sensor with accuracy of ±3
10. IIC bus interface, maximum transmission speed of 400kHz (5V working voltage)
11 can be cascaded with other IIC devices, the 24C32 address can be modified by A0/A1/A2, the default address can be corrected by 0x57
Secondary battery CR2032 12. The clock will move any natural normal to ensure the system after a power outage.

Instructions Wiring (for example R3 Uno Arduinos):
SCL→A5
SDA → A4
VCC → 5V
GND → GND