Install a DS3231 RTC for Slackware ARM on the Raspberry Pi

Hi all

I would want to install a DS3231 RTC on my RPI.

I have red the project from Exaga :

https://sarpi.fatdog.eu/index.php?p=chronodot-rtc

So I have tried to purchase a Chronot in an online shop.

This shop sends me an email saying that they cannot get Chronodot from Adafruit but saying that I can use this RTC available by Adafruit :

https://www.adafruit.com/product/3013

Is it true ? This product can be used for this project ?

Desiderius