DS3231 AT24C32 Clock Module, Real Time Clock RTC IIC RTC Module for Arduino
Module parameters:
1. Size: 38 mm (L) x 22 mm (W) x 14 mm (H).
2. Weight: 7 g.
3. Packaging: anti-static packaging.
4. Clock chip: high-precision clock chip DS3231.
5. Memory chips: AT24C32 (storage capacity of 32 KB)
6. Operating voltage: 3.3 - 5.5 V.
7. Clock accuracy range: 0-40°C, accuracy 2ppm, approx. 1 minute error.
8. The chip temperature sensor has an accuracy of ± 3°.
9. Real-time clock generator for seconds, minutes, hours, day, date, month and year and provides a leap year compensation valid up to the year 2100.
Product highlights:
1. Programmable rectangular wave output.
2. RST output/push button reset debounce input
3. Two day time alarms. Simple serial port to connect to most microcontrollers.
4. IIC bus interface, the maximum transmission speed is 400KHz (working voltage 5V).
5. Can be cascaded with other IIC devices, 24C32 addresses can be short-circuited. Change A0/A1/A2, default address is 0x57
6. To ensure that the system works after a power outage, the clock moves normally
Wiring instructions (for example for Arduino r3):
SCL → A5.
SDA → A4.
VCC → 5V.
GND → GND
Box contents:
3 x DS3231 real time clock RTC module