(Dimensions: 38mm (length) * 22mm (W) * 14mm (H
Weight: 8G
Working voltage :3.3 - 5 .5 V
Clock chip: high-precision clock chip DS3231
Clock accuracy the range :0-40 ℃, accuracy 2ppm, the error was about 1 minute
With two calendar alarm
Programmable square-wave output
Real-time clock generation seconds, minutes, hours, day, date, month and year timing, and provide valid until the year 2100 leap year compensation
℃Internal chip temperature sensor comes with an accuracy of ± 3
(memory chips: AT24C32 (storage capacity of 32KM
(IIC bus interface, the maximum transmission speed 400KHz (working voltage of 5V
IIC other devices can be cascaded, 24C32 address can be modified by short-circuiting A0/A1/A2, the default address is 0x57
With rechargeable battery LIR2032, to ensure that the system is powered down, the clock of any course of normal walking
Package: single anti-static packaging
:(Wiring instructions (with Arduino uno r3 for example
SCL → A5
SDA → A4
5V→ VCC
GND→ GND
:Related Link