Guru
Joined: 05/10/2019
Location: United KingdomPosts: 9181
| Posted: 06:54am 27 Oct 2021 |
That's really nice, Volhout. :) It has a really cool retro look - glad you stuck with a red 7-seg display. :)
One of my digital clocks is one with a proper mains transformer (you can feel the weight). I suspect it's using mains frequency division as the frequency source as it never appears to drift at all when I compare it to a RF time signal clock. I know the RTC chips can be pretty accurate but I've rarely had one that didn't drift. Some of the little modules are pretty bad but you need a good frequency counter to set them up correctly.
Edited 2021-10-27 16:56 by Mixtel90