RTC DS3231 I2C real time clock module - STEMMA QT/Qwiic - Adafruit 5188

Index: ADA-20175 EAN: 5904422348885
A real-time clock (RTC) module from Adafruit. It features the DS3231 chip, which integrates a quartz resonator and temperature compensator to significantly improve the module's accuracy. The accuracy of the DS3231 is ±3.5 ppm (±0.3024 seconds/day). The DS3231 I2C Real-Time RTC clock module also features a battery slot, allowing the module to maintain high timing accuracy even when the main power supply to the device is interrupted. The module also features STEMMA QT / Qwiic connectors for convenient connection.
RTC DS3231 I2C real time clock module - STEMMA QT/Qwiic - Adafruit 5188
€19.50
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Manufacturer: Adafruit
Compatibility: Arduino Raspberry Pi

Product description: RTC DS3231 I2C real time clock module - STEMMA QT / Qwiic - Adafruit 5188

The real time clock (RTC) module from Adafruit. It features a DS3231 chip that integrates a quartz resonator and temperature compensator, which significantly improves the accuracy of the module. The accuracy of the DS3231 is ±3.5 ppm (±0.3024 seconds/day). The DS3231 I2C Real-Time RTC clock module also features a battery slot, allowing the module to maintain high timing accuracy even when the main power supply to the device is interrupted. The module also has STEMMA QT / Qwiic connectors for convenient connection.

CR1220 battery not included. Please purchase separately.

RTC DS3231 I2C real time clock module - STEMMA QT/Qwiic - Adafruit 5188 Battery connector for the real time clock module from Adafruit.

Features of DS3231 RTC real-time clock module

  • Equipped with a battery slot, which allows you to maintain high precision timing even when the main power supply to the device is interrupted.
  • Providing seconds, minutes, hours, day, week, month and year information.
  • Automatic month-end date adjustment, including leap year adjustments.
  • Clock presents data in 24-hour or 12-hour format with AM / PM indicator.
  • Two programmable alarms and programmable square wave output available.
  • The module has an RST pin, which can be used as a button input to reset the microprocessor.

Description of module pins

  • VIN - power supply for RTC module
  • GND - system ground
  • SCL - I2C bus data line
  • SDA - I2C bus clock line
  • RST - calibration reset pin
  • SQW - optional square wave or interrupt output

The manufacturer provides a user guide for the RTC module along with sample code, which is useful when starting to work with the module.

RTC DS3231 I2C real time clock module - STEMMA QT/Qwiic - Adafruit 5188 Pinoutdiagram of the module.

RTC DS3231 I2C real time clock module - STEMMA QT/Qwiic - Adafruit 5188


The RTC DS3231 real-time clock module comes with goldpin connectors.

Specifications of RTC DS3231 module

  • Supply voltage: from 3 V to 5 V
  • Communication interface: I2C bus
  • I2C address: 0x68
  • Time measurement range: 1970 to 2100
  • Work environment temperature: from -40°C to 85°C
  • Timing accuracy: ±3.5 ppm (±0.3024 seconds / day)
  • Product size: 25.4 x 17.8 x 7.8 mm
  • Weight: 2.5 g

Set contents

  • RTC DS3231 I2C real time clock module - STEMMA QT / Qwiic - Adafruit 5188
  • Goldpin strip for self-soldering
Sensor - type RTC
Package width 7.5 cm
Package height 10.8 cm
Package depth 0.5 cm
Package weight 0.004 kg

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Product reviews

RTC DS3231 I2C real time clock module - STEMMA QT/Qwiic - Adafruit 5188

5/5

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and come from the post-purchase process.
Zygmunt D. 13.01.2022 Confirmed purchase Translated review
So far, everything works as expected

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