1 Size 38mm length 22mm W 14mm height
2 Weight 8g
3 Operating voltage 33 5 5 V
4 clock chip highprecision clock chip DS3231
5 Clock Accuracy 040 range the accuracy 2ppm the error was about 1 minute
6 calendar alarm clock with two
7 programmable squarewave 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
11IIC 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 A0A1A2 modify default address is 0x57
13 with rechargeable battery LIR2032 to ensure the system after power failure the clock move any natural normal
14 Packing single antistatic packaging
Wiring instructions for Arduino uno r3 for example
SCL A5
SDA A4
VCC 5V
GND GND