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RTC DS3231

4 years 6 months ago #2657 by seston
It is possible to add rtc module ds3231 without hardware and software conflicts?

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4 years 6 months ago #2674 by seston
Today i can say :DS3231 working prefect. If raspberry pi lost internet connection time is allways right. How i connect this arduino module and set up i write if it is interesting. Sorry only my English. My mother tongue is Estonian :)

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4 years 6 months ago - 4 years 6 months ago #2680 by Adam69
Dear seston,

I do nat have a RTC, but did order one, shoud be comming in the mail soon.
Thinking about the technical part, I do think that it has all to do with the Raspberry and nothing to do with the rest of the software.
Just like a PC, that does have an RTC, this should never effect the software (other than the time being set).

I do not have any RTC yet, hope to be using this soon, have a look at these sites:
www.raspberrypi-spy.co.uk/2015/05/adding...to-the-raspberry-pi/

Also this one is nice: (not correct type, but good info)
learn.adafruit.com/adding-a-real-time-cl...ry-pi/wiring-the-rtc

You may need to install this software: (not sure yet)
skpang.co.uk/blog/archives/575


If this does work for you, could you let us know?, or if you run into any problems than also let us know :)
Regards,

Adam69

I think I have missed your last update, where you mention that it all works good, sorry.... could you share with us how you have done this?
Personally would like to know if it was easy.

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4 years 6 months ago - 4 years 6 months ago #2689 by seston
I got working RTC from this link www.raspberrypi-spy.co.uk/2015/05/adding...to-the-raspberry-pi/

This is was very easy. DS3231 is better than DS 1307. I bought this from Ebay. If you lost internet connection. How you Raspberry knows what is time? For this situation it needs hardware clock.

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4 years 6 months ago - 4 years 6 months ago #2693 by seston
And for last. We need show hardware clock time
#sudo hwclock --show
if it shows UTC time and you need set it to localtime
#sudo hwclock --systohc --localtime
and save this
#sudo hwclock -s
and watching time with
#sudo hwclock -r

If questions ask :)
My english is low but i try :)

My clock from here
The following user(s) said Thank You: osalval

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