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+--- Thread: Looking for guidance on setting up with external RTC (/showthread.php?tid=16647)
Looking for guidance on setting up with external RTC - Ditchmagnet - 05-13-2022
Hi,
I'm currently using a Raxda Rock Pi 4, running Ubuntu Server 20.04. I'm using it with grabserial to automatically create logs from a serial port I need to record.
I need to setup a bunch more locations doing this, so I was looking at the ROCK64_v2.0 on amazon since its just $30 for a whole kit.
I will be needing RTC functionality though since the locations I will have to put these wont have network access and I don't want to have to go set the time manually in the event of a power outage.
I have been trying to do some research on adding RTC to the ROCK64 and found that it appears possible.
According to this-
https://forum.pine64.org/showthread.php?tid=6309&pid=44024#pid44024
It looks like they are using Ubuntu 18.04 there which will hopefully still be compatible with the usb-to-serial cables I'll use.
I think the RTC module he is using is this one on amazon-
https://www.amazon.com/AT24C32-Replace-Arduino-Batteries-Included/dp/B07Q7NZTQS/ref=sr_1_5?crid=1CG39C6C5E4YS&keywords=DS1307&qid=1652483479&sprefix=ds1307%2Caps%2C119&sr=8-5&th=1
But I also saw this thread -
https://forum.armbian.com/topic/8856-solved-how-to-add-an-external-rtc-module-to-rock64-board/
Saying that this part was compatible with Armbian-
https://www.amazon.com/Adafruit-3296-DS1307-Clock-Breakout/dp/B01MG3NEWF/ref=sr_1_3?crid=1CG39C6C5E4YS&keywords=DS1307&qid=1652483406&sprefix=ds1307%2Caps%2C119&sr=8-3
Additionally, it appears that this particular module is more accurate, which is the SN model-
https://www.amazon.com/Adafruit-3296-DS1307-Clock-Breakout/dp/B01MG3NEWF/ref=sr_1_3?crid=33K7YC661A2N7&keywords=Adafruit+3296+DS1307+Real+Time+Clock&qid=1652483967&sprefix=adafruit+3296+ds1307+real+time+clock%2Caps%2C83&sr=8-3
SO! Does what I want to do sound feasible? It also sounds like I could run Ubuntu 20.04 according to this post-
https://forum.pine64.org/showthread.php?tid=4849&pid=65313#pid65313
I'm not sure I'm up to the task of getting the RTC module to work, I haven't every compiled a kernel etc, so this would really be a learning experience, but I'm worried I might get stuck too.
Any suggestions or insights would be appreciated!