TECNOIOT 5pcs DS3231 AT24C32 IIC Module Precision Clock Module DS3231 for Arduino

5pcs DS3231 AT24C32 IIC Module Precision Clock Module DS3231 DESCRIPTION: DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping. Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line. The DS3231 is available in commercial and industrial temperature ranges, using a 16-pin 300mil SO package. Module parameters: 1. Size: 38mm (length) * 22mm (W) * 14mm (height) 2. Weight: 8g 3. Operating voltage :3.3 - 5 .5 V 4. Clock chip: high-precision clock chip DS3231 5. Clock Accuracy :0-40 range, the accuracy 2ppm, the error was about 1 minute 6. Calendar alarm clock with two 7. Programmable square-wave output 8. Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation 9. Chip temperature sensor comes with an accuracy of ± 3 10. Memory chips: AT24C32 (storage capacity 32K) 11. IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V) 12. Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57 13. With rechargeable battery CR2032, to ensure the system after power failure, the clock move any natural normal 14. Packing: single anti-static packaging Wiring instructions ( for Arduino uno r3 for example): SCL → A5 SDA → A4 VCC → 5V GND → GND PACKET CONTAIN: 5pcs x DS3231 AT24C32 IIC Module Precision Clock Module (Without Battery)