DS3231 IIC Module Precision Clock Module DS3231SN /DS3231M Memory Real Time 3.3V/5V For Raspberry Pi
Product parameters
Size: 38mm (length) * 22mm (width) * 14mm (height)
Working voltage: 3.3-5.5V
Clock chip: high-precision clock chip DS3231
Clock accuracy: within the ambient temperature range of 0-40 ℃, with an accuracy of 2ppm and an annual error of about 1 minute
Comes with 2 calendar alarms
Programmable square wave output
Real time clock generates timing for 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 maximum transmission speed of 400KHZ (when operating at 5V)
Other IIC devices can be cascaded, and the 24C32 address can be modified by short circuiting A0/A1/A2. The default address is 0X57
Wiring instructions (using ARDUINO UNO as an example):
UNO :
A5————————SCL
A4————————SDA
5V————————VCC
GND———————GND
The main parameters are as follows:
1. Compatible with Arduino development environment.
2. Communication method: IIC.
3. The module itself can adapt to 3.3V and 5V systems without the need for level conversion.
4. Working temperature: within the temperature range of -40 ° C to+85 ° C.
5. Low power consumption, complete clock and calendar functions including second, minute, hour, week, date, month, and year timing.
Usage: It can be used for continuous timing and requires a backup battery.
Test Preparation:
1. Prepare accessories and select software. This time, use Arduino software version 1.6.5 (under WIN10 environment)
DS3231 module -4 DuPont cables – MINI interface USB cable – computer with Arduino software installed, this software can be downloaded from the Arduino official website
