DS3231 AT24C32 I2C REAL TIME CLOCK (RTC) MODULE WITH BATTERY

Specifications:

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, accuracy 2ppm, the error was about 1 minute/year
6. Calendar alarm clock
7. Programmable square-wave output
8. Real time clock generator seconds, minutes, hours, day, date, month and year timing and valid until the year 2100. Leap year compensated
9. Chip temperature sensor comes with an accuracy of ± 3 ℃
10. memory chips: AT24C32 (storage capacity 32K)
11. I2C bus interface, maximum transmission speed of 400KHz (working voltage of 5V)
12. With free Lithium battery, to ensure system continuity after power failure.


Wiring instructions (with Arduino uno r3):
SCL → A5
SDA → A4
VCC → 5V
GND → GND

Tutorial and library site: http://www.rinkydinkelectronics.com/library.php?id=73

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