Модуль DS3231 IIC, прецизионный тактовый модуль, DS3231SN/DS3231M, память реального времени, 3,3 В/5 В для Raspberry Pi

Функции и совместимость

Технические примечания по настройке

• This listing includes different DS3231 module forms. Identify the actual DS3231SN/M device, PCB and connector labels before applying precision or battery specifications.
• The RTC uses I2C address 0x68; a separate EEPROM, when fitted, has its own address.
• For the first ESP32 logic test use a compatible 3.3 V bus with the battery holder empty. Identify the charging circuit before choosing a rechargeable or non-rechargeable backup cell.

Модуль DS3231 IIC, прецизионный тактовый модуль, DS3231SN/DS3231M, память реального времени, 3,3 В/5 В для Raspberry Pi

Параметры продукта

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 accuracy depending on the fitted DS3231 variant and temperature; verify the actual SN/M specification

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 ℃

EEPROM: AT24C32 is fitted on some module forms; check the selected PCB

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. Check the I2C pull-up voltage on the selected module; use a 3.3 V-compatible bus with ESP32.

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