Specification:
Specification: with CR2032 or without CR2032 (optional)
Working voltage: 3.3-5.5V
Clock chip: high-precision clock chip DS3231
Clock accuracy: within the range of 0-40 ℃, with an accuracy of 2ppm and an annual error of about 1 minute
With 2 calendar alarms
Programmable square wave output
Real-time clock generates seconds, minutes, hours, weeks, dates, months and years, and provides leap year compensation valid until 2100
The chip comes with a built-in temperature sensor, with an accuracy of ± 3 ℃
Storage chip: AT24C32 (storage capacity 32K)
IIC bus interface, with a high transmission speed of 400KHz (when the working voltage is 5V)
Can cascade other IIC devices, 24C32 address can be modified by short circuit A0/A1/A2, default address is 0x57
Size: 38mm/1.49inch (length) * 22mm/0.86inch (width) * 14mm/0.55inch (height)
Weight: 8g
Wiring instructions (using FOR Arduino r3 as an example):
SCL-A5
SDA-A4
VCC-5V
GND-GND
Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.
