High-precision DS3231 AT24C32 RTC I2C Clock Module + Battery

Real-time clock module. It allows you to read the time in the form of hours, minutes and seconds and date: month, day, year. The battery used in this module is the popular CR2032 Lithium Cell 3V battery. The module automatically charges the battery. The diode prevents the "reverse" current.

Specification:

Module with the real time clock DS3231

It allows you to read the time in the form of hours, minutes and seconds and date: month, day, year.

The communication interface is the I2C bus (SDA and SCL lines)

The data refresh rate is 1 Hz (1 second).

Available data: Time: hour (AM, PM), minute, second, Date: month, day, year Accurate calendar up to the year 2100

The module has goldpin header enabling connection to any Arduino kit or a dedicated PCB using the available cables.

Compatible with arduino UNO and MEGA 2560

Application for contact plates, arduino etc.

Module parameters:

RTC DS3231 real time clock module

Has AT24C32 memory

Chip DS3231

Power 2.3-5.5V

Battery basket: CR2032

Current consumption: less than 200 nA

Communication via SPI bus (SDA, SCL)

Bus address: 0x68

Communication interface: I2C

Refresh rate: 1 Hz (1 second)

Gives: seconds, hours, minutes, months, days of the week and years

Accuracy:

at a temperature of 0 ° C to +40 ° C: +/- 2 ppm

at a temperature of -40 ° C to +85 ° C: +/- 3.5 ppm

Dimensions: 38 x 22mm

Pinout:

The 5V supply voltage is connected to the pin marked with the same symbol.

The I2C bus should be connected to the pins

SCL - clock line

SDA - data line.

The SQW pin is the square wave output with the selected frequency

GND is the mass of the system.

Set contains:

- RTC DS3231 AT24C32 time module - precise I2C clock - 1 pc

- Battery - 1 pc