Module parameters:
1. Size: 38 mm (length) * 22 mm (width) * 14 mm (high)
2. Weight: 8 g
3. Working voltage: 3.3-5.5 V
4. The clock chip high precision clock chip DS3231
5. The clock precision: 0-40 range precision 2 PPM in error about 1 minute
6. Take two calendar clock
7. Programmable square wave output
8. Second minute real-time clock week date month and year when the timer and provide the valid until 2100 leap year
9. The chip itself temperature sensor the accuracy of plus or minus 3
10. Memory chips: AT24C32 (32 k) storage capacity
11. IIC bus interface the highest speed 400 KHZ (working voltage is 5 v)
12. Other IIC can cascade equipment 24 c32 address by short circuit A0 / A1 / A2 modification the default address 0 x57
13. With rechargeable batteries LIR2032 guarantee the power system the clock still normal walking
14. Packing: single antistatic packaging
Wiring instructions (in the Arduino uno r3 for example) :
SCL - A5
The SDA - A4
The VCC - 5 v
GND to GND








Packaging Details
Unit Type: piece Package Weight: 0.100kg (0.22lb.) Package Size: 10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)