ITEM NAME:1pcs DS3231 AT24C32 IIC High Precision Real Time Clock Module For Ardui JQK Descriptio n Description 100% new high quality Material: PCB Color: picture color Size: 38 * 22 * 14 mm Module parameters: 1. Operating voltage :3.3-- 5.5v 2. Clock chip: high precision clock chip DS3231 3. Clock accuracy: within the range of 0-40℃, the accuracy is 2ppm, and the annual error is about 1 minute 4. Bring 2 calendar alarms 5. Programmable square wave output 6. The real-time clock generates seconds, minutes, hours, weeks, dates, months and years and provides leap year compensation valid until 2100 7. Internal temperature sensor with accuracy of  ±3℃ 8. Memory chip :AT24C32(storage capacity: 32K) 9.IIC bus interface, maximum transmission speed of 400KHz(working voltage of 5V) 10. Other IIC devices can be cascaded,24C32 address can be modified by short-circuiting A0/A1/A2, the default address is 0x57 11. With battery CR2032, ensure the system power off, the clock is still running normally 12. Packaging: single anti-static packaging Wiring instructions (take Arduino uno r3 as an example): SCL - A5 The SDA - A4 The VCC - 5 v GND to GND Product list :1pcs* high-precision clock module, CR2032 button battery Feedback If you are satisfied with our products and services, please leave "positive feedback" and our system will provide the same feedback ASPS. If you are not satisfied with the product when you receive the product, you can.Clock chip: high precision clock chip DS3231. Clock accuracy: within the range of 0-40℃, the accuracy is 2ppm, and the annual error is about 1 minute. Product list :1pcs high-precision clock module, CR2032 button battery.
