Real time clock module DS3231

Real time clock module DS3231
Review score
4.9 / 5.0
Item number10129
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Real time clock module with the DS3231 chip. This module ensures that the Arduino knows the exact time at all times. By connecting the Arduino to the ´qw´ pin, it is possible to generate an interrupt every second with which sensor values or a display can be addressed.

This module uses the DS3231, which is the big brother of DS1307. This chip has an integrated timing crystal and temperature sensor, which provides more stability. With this module you have just that little extra precision and reliability that the predecessor is missing. The chip is fully compatible with the predecessor and therefore requires no modification in the source code.

  • Communication: I2C interface.
  • Keep track of the time precisely even when the module is not connected (battery backup)
  • Year - month - day hour: minute: second
  • Connection for a trigger with interval (1Hz, 4kHz, 8kHz, 32kHz)
  • 56 Bytes Non-volatile memory
  • Greater precision than the DS1307
  • Extra memory chip: AT24C32 (32K bytes)
  • Built-in temperature sensor (deviation of ± 3 ° C)

The module is supplied without the LIR2032 button cell!


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Question and answer

Q The Netherlands AnoniemIs this a DS3231S (operating temperature between 0 and 70 degrees) or a DS3231SN (usable between -40 and 85 degrees)? View 1 answer   |   Answer this question
Q The Netherlands BlankaWhich trace is that? View 1 answer   |   Answer this question
Q The Netherlands Pieter van SantenDoes the DS3231 also work with a normal button cell 2032? As soon as the LIR2032 has arrived, I will order it, but until this time I only have a button cell at my disposal. View 1 answer   |   Answer this question


The Netherlands
5 stars
Cheap Accurate Usable with rechargeable cell Fairly large if you want to build in compactly
I have already used this unit several times in combination with Arduino Uno and Nano. It works well and keeps time very accurately, even when the power is gone. However, it is quite large for compact installation. For the project in the photo, an alarm clock, the built-in format was no problem.
Placed on 
The Netherlands
5 stars
Great product, with the Adafruit library at work
Placed on 
The Netherlands
5 stars
Works well
Placed on 
The Netherlands
5 stars
Indeed works well just now to order a rechargeable button cell
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The Netherlands
5 stars
Also compatible with the DS1307 module and drivers in Raspbian
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