Modul RTC DS3231 ceas timp real

Size: 38mm (length) * 22mm (width) * 14mm' (height)
2. Working voltage 3.3-5.5V
3. Clock chip: high-precision clock chip DS3231
4. Clock accuracy: within the range of 0-40°C. Accuracy 2pm, annual error is about 1 minute
5. Programmable square wave output with 2 calendar alarms
6. The real-time clock generates seconds, minutes, hours, days of the week, date, month and year timing and provides leap year compensation valid up to 7.2100 years
8. The chip has its own temperature sensor with an accuracy of ±3℃
9. Storage chip: AT24c32 (recommended storage capacity 32K)
10. ILC bus interface, transmission speed up to 4003Hz (when working voltage is 5V)
11. Other ILC devices can be cascaded, the 24C32 address can be modified by short-circuiting A0/A1/A2, the default address
12. Use CR2032 battery to ensure that the clock still moves normally after the system is powered off
13. Packaging: single anti-static packaging
14. Wiring instructions (take For-Arduino uno r3 as an example)
SCL→A5
SDA→A4
VCC→5V
GND→GND