You will get:
2pcs clock module
Specifications:
Dimension: 38mm* 22mm * 14mm
Weight: 10g
Working voltage : 3.3 -. 5 .5 V.
Clock chip: high-precision clock chip DS3231M
Memory chips:. AT24C32.
Clock accuracy: 0-40 ?, 2ppm accuracy, annual error is about 1 minute
With 2 calendar alarm clocks
Programmable square wave output
The chip comes with a temperature sensor with an accuracy of ± 3 ?
Memory chip: AT24C32 (storage capacity 32K)
IIC bus interface, the maximum transmission speed is 400KHz (when the working voltage is 5V)
Can be cascaded with other IIC devices. The 24C32 address can be modified by shorting A0 / A1 / A2. The default address is 0x57.
