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6pcs DS3231 Real Time Clock Module RTC Sensor High Precision AT24C32 IIC Timer Alarm Clock for Arduino Raspberry Pi

KWD 5
– 1 +

Special Features

  • This module sizes: 38mm (L) * 22mm (W) * 14mm (H) / 1.50" * 0.87" * 0.55"; Weight: 8 g / 0.28 oz; Working voltage: 3.3--5.5V
  • The clock module can be operated in a 24-hour format or a 12-hour format with a /AM/PM indication
  • The module provides two programmable calendar alarms and a programmable square-wave output, and addresses and data are transmitted serially over an I2C bidirectional bus.
  • The module integrates a digital temperature sensor that can be accessed via an I2C interface (just like time) with an accuracy of ±3°C.
  • The modular control circuit enables automatic power detection and manages power switching between the main power supply and the backup power supply (low-voltage battery).

Description

Module Parameters:
1 size: 38mm (L) * 22mm (W) * 14mm (H) / 1.50in * 0.87in * 0.55in
2. Weight: 8g/0.28oz
3. Working voltage: 3.3--5.5V
4. Clock chip: high-precision clock chip DS3231
5. Clock accuracy: within the range of 0-40°C, the accuracy is 2ppm, and the annual error is about 1 minute
6. Comes with 2 calendar alarms
7. Programmable square wave output
8. Real-time clocks generate seconds, minutes, hours, day, date, month, and year, and provide leap year compensation valid until 2100
9. The chip has its own temperature sensor inside, and the accuracy is ±3°C
10. Memory chip: AT24C32 (memory capacity 32K)
11. IIC bus interface, high transmission speed 400KHz (when the working voltage is 5V)
12. It can be cascaded with other IIC equipment, and the address of 24C32 can be modified by short-circuit A0/A1/A2, and the default address is 0x57

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