DS3231 AT24C32 IIC Module Precision Clock Module DS3231 for Arduino Memory module

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:

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• 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