sync date to an RTC without hwclock

[James Hughes]

On Tue, May 28, 2019 at 4:07 AM Ronny Nilsson <
rln-nard at arbetsmyra.dyndns.org> wrote:

>
> Hi James
> A quick workaround for you might be to use and old mobile phone as a WiFi
> accesspoint. Share Internet access for the Pi via tethering.


Yeah, it seems like this might be the best option. Unfortunately, the piece
is being exhibited in Gwangju, South Korea, so setting up mobile phone is a
bit more complicated. Perhaps, we can just get it set up on wifi locally
and hope the battery on the RTC can survive the shipping process.


> Otherwise, can
> you provide additional technical information? What RTC model have you
> added
> and how is it connected? By what pins? I suspect you may need to define
> your
> setup via Device Tree to inform the OS. If you are unsure of what Nard
> version you are running; check the "/etc/release" file   in the target.
>

I think all I did to get this going was to set the /boot/config.txt like
this:
# use the real-time clock
dtoverlay=i2c-rtc,ds3231

I don't recall what pins I used.

It's running:
Nard Linux SDK v1.00


> Cool thing with an art installation. Is there any photos of the project?
> What
> are the Pi doing?
>

https://www.rebeccacummins.com/work#/public-comissions/

Scroll down to the 5th pic ("Detail of mechatronic sun and moon pointers")